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Finding the Fourth Proportional to 78,866.96, 108,836.30 and 50,572.66

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Solution

The fourth proportional to 78,866.96, 108,836.30 and 50,572.66 is: 69,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,866.96 : 108,836.30 = 50,572.66 : x
  2. Step 2: Convert to fraction form
    78,866.96/108,836.30 = 50,572.66/x
  3. Step 3: Cross multiply
    78,866.96x = 108,836.30 × 50,572.66
  4. Step 4: Simplify right side
    78,866.96x = 5,504,141,195.56
  5. Step 5: Solve for x
    x = 5,504,141,195.56/78,866.96
  6. Step 6: Final answer
    x = 69,790.20

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