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Finding the Fourth Proportional to 92,771.55, 128,020.80 and 52,485.99

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Solution

The fourth proportional to 92,771.55, 128,020.80 and 52,485.99 is: 72,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,771.55 : 128,020.80 = 52,485.99 : x
  2. Step 2: Convert to fraction form
    92,771.55/128,020.80 = 52,485.99/x
  3. Step 3: Cross multiply
    92,771.55x = 128,020.80 × 52,485.99
  4. Step 4: Simplify right side
    92,771.55x = 6,719,298,428.59
  5. Step 5: Solve for x
    x = 6,719,298,428.59/92,771.55
  6. Step 6: Final answer
    x = 72,428.44

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