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Finding the Fourth Proportional to 52,957.98, 79,436.93 and 13,515.09

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Solution

The fourth proportional to 52,957.98, 79,436.93 and 13,515.09 is: 20,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,957.98 : 79,436.93 = 13,515.09 : x
  2. Step 2: Convert to fraction form
    52,957.98/79,436.93 = 13,515.09/x
  3. Step 3: Cross multiply
    52,957.98x = 79,436.93 × 13,515.09
  4. Step 4: Simplify right side
    52,957.98x = 1,073,597,190.70
  5. Step 5: Solve for x
    x = 1,073,597,190.70/52,957.98
  6. Step 6: Final answer
    x = 20,272.62

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