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Finding the Fourth Proportional to 76,128.24, 114,189.60 and 19,967.88

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Solution

The fourth proportional to 76,128.24, 114,189.60 and 19,967.88 is: 29,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128.24 : 114,189.60 = 19,967.88 : x
  2. Step 2: Convert to fraction form
    76,128.24/114,189.60 = 19,967.88/x
  3. Step 3: Cross multiply
    76,128.24x = 114,189.60 × 19,967.88
  4. Step 4: Simplify right side
    76,128.24x = 2,280,124,230.05
  5. Step 5: Solve for x
    x = 2,280,124,230.05/76,128.24
  6. Step 6: Final answer
    x = 29,951.10

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