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Finding the Fourth Proportional to 18,963.44, 28,459.68 and 8,582.48

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Solution

The fourth proportional to 18,963.44, 28,459.68 and 8,582.48 is: 12,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.44 : 28,459.68 = 8,582.48 : x
  2. Step 2: Convert to fraction form
    18,963.44/28,459.68 = 8,582.48/x
  3. Step 3: Cross multiply
    18,963.44x = 28,459.68 × 8,582.48
  4. Step 4: Simplify right side
    18,963.44x = 244,254,634.41
  5. Step 5: Solve for x
    x = 244,254,634.41/18,963.44
  6. Step 6: Final answer
    x = 12,880.29

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