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Finding the Fourth Proportional to 78,868.76, 108,851.39 and 50,158.49

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Solution

The fourth proportional to 78,868.76, 108,851.39 and 50,158.49 is: 69,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868.76 : 108,851.39 = 50,158.49 : x
  2. Step 2: Convert to fraction form
    78,868.76/108,851.39 = 50,158.49/x
  3. Step 3: Cross multiply
    78,868.76x = 108,851.39 × 50,158.49
  4. Step 4: Simplify right side
    78,868.76x = 5,459,820,914.92
  5. Step 5: Solve for x
    x = 5,459,820,914.92/78,868.76
  6. Step 6: Final answer
    x = 69,226.66

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