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Finding the Fourth Proportional to 92,842.18, 128,122.80 and 50,400.70

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Solution

The fourth proportional to 92,842.18, 128,122.80 and 50,400.70 is: 69,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,842.18 : 128,122.80 = 50,400.70 : x
  2. Step 2: Convert to fraction form
    92,842.18/128,122.80 = 50,400.70/x
  3. Step 3: Cross multiply
    92,842.18x = 128,122.80 × 50,400.70
  4. Step 4: Simplify right side
    92,842.18x = 6,457,478,805.96
  5. Step 5: Solve for x
    x = 6,457,478,805.96/92,842.18
  6. Step 6: Final answer
    x = 69,553.29

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