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Finding the Fourth Proportional to 57,056.70, 78,737.78 and 31,906.20

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Solution

The fourth proportional to 57,056.70, 78,737.78 and 31,906.20 is: 44,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,056.70 : 78,737.78 = 31,906.20 : x
  2. Step 2: Convert to fraction form
    57,056.70/78,737.78 = 31,906.20/x
  3. Step 3: Cross multiply
    57,056.70x = 78,737.78 × 31,906.20
  4. Step 4: Simplify right side
    57,056.70x = 2,512,223,356.24
  5. Step 5: Solve for x
    x = 2,512,223,356.24/57,056.70
  6. Step 6: Final answer
    x = 44,030.30

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