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Finding the Fourth Proportional to 78,063.48, 107,727.62 and 42,253.79

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Solution

The fourth proportional to 78,063.48, 107,727.62 and 42,253.79 is: 58,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063.48 : 107,727.62 = 42,253.79 : x
  2. Step 2: Convert to fraction form
    78,063.48/107,727.62 = 42,253.79/x
  3. Step 3: Cross multiply
    78,063.48x = 107,727.62 × 42,253.79
  4. Step 4: Simplify right side
    78,063.48x = 4,551,899,482.77
  5. Step 5: Solve for x
    x = 4,551,899,482.77/78,063.48
  6. Step 6: Final answer
    x = 58,310.23

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