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Finding the Fourth Proportional to 88,685.90, 133,028.85 and 42,029.90

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Solution

The fourth proportional to 88,685.90, 133,028.85 and 42,029.90 is: 63,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,685.90 : 133,028.85 = 42,029.90 : x
  2. Step 2: Convert to fraction form
    88,685.90/133,028.85 = 42,029.90/x
  3. Step 3: Cross multiply
    88,685.90x = 133,028.85 × 42,029.90
  4. Step 4: Simplify right side
    88,685.90x = 5,591,189,262.62
  5. Step 5: Solve for x
    x = 5,591,189,262.62/88,685.90
  6. Step 6: Final answer
    x = 63,044.85

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