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Finding the Fourth Proportional to 8,632.44, 12,949.34 and 3,085.56

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Solution

The fourth proportional to 8,632.44, 12,949.34 and 3,085.56 is: 4,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.44 : 12,949.34 = 3,085.56 : x
  2. Step 2: Convert to fraction form
    8,632.44/12,949.34 = 3,085.56/x
  3. Step 3: Cross multiply
    8,632.44x = 12,949.34 × 3,085.56
  4. Step 4: Simplify right side
    8,632.44x = 39,955,965.53
  5. Step 5: Solve for x
    x = 39,955,965.53/8,632.44
  6. Step 6: Final answer
    x = 4,628.58

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