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Finding the Fourth Proportional to 123,018.96, 169,778.70 and 75,303.84

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Solution

The fourth proportional to 123,018.96, 169,778.70 and 75,303.84 is: 103,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,018.96 : 169,778.70 = 75,303.84 : x
  2. Step 2: Convert to fraction form
    123,018.96/169,778.70 = 75,303.84/x
  3. Step 3: Cross multiply
    123,018.96x = 169,778.70 × 75,303.84
  4. Step 4: Simplify right side
    123,018.96x = 12,784,988,060.21
  5. Step 5: Solve for x
    x = 12,784,988,060.21/123,018.96
  6. Step 6: Final answer
    x = 103,926.97

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