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Finding the Fourth Proportional to 8,499.15, 12,748.73 and 8,045.55

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Solution

The fourth proportional to 8,499.15, 12,748.73 and 8,045.55 is: 12,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.15 : 12,748.73 = 8,045.55 : x
  2. Step 2: Convert to fraction form
    8,499.15/12,748.73 = 8,045.55/x
  3. Step 3: Cross multiply
    8,499.15x = 12,748.73 × 8,045.55
  4. Step 4: Simplify right side
    8,499.15x = 102,570,504.42
  5. Step 5: Solve for x
    x = 102,570,504.42/8,499.15
  6. Step 6: Final answer
    x = 12,068.33

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