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Finding the Fourth Proportional to 459,360.96, 689,054.40 and 126,936.96

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Solution

The fourth proportional to 459,360.96, 689,054.40 and 126,936.96 is: 190,409.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,360.96 : 689,054.40 = 126,936.96 : x
  2. Step 2: Convert to fraction form
    459,360.96/689,054.40 = 126,936.96/x
  3. Step 3: Cross multiply
    459,360.96x = 689,054.40 × 126,936.96
  4. Step 4: Simplify right side
    459,360.96x = 87,466,470,810.62
  5. Step 5: Solve for x
    x = 87,466,470,810.62/459,360.96
  6. Step 6: Final answer
    x = 190,409.02

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