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Finding the Fourth Proportional to 8,696.22, 12,981.41 and 7,645.29

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Solution

The fourth proportional to 8,696.22, 12,981.41 and 7,645.29 is: 11,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.22 : 12,981.41 = 7,645.29 : x
  2. Step 2: Convert to fraction form
    8,696.22/12,981.41 = 7,645.29/x
  3. Step 3: Cross multiply
    8,696.22x = 12,981.41 × 7,645.29
  4. Step 4: Simplify right side
    8,696.22x = 99,246,605.83
  5. Step 5: Solve for x
    x = 99,246,605.83/8,696.22
  6. Step 6: Final answer
    x = 11,412.61

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