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Finding the Fourth Proportional to 58,405.44, 87,568.20 and 20,964.68

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Solution

The fourth proportional to 58,405.44, 87,568.20 and 20,964.68 is: 31,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,405.44 : 87,568.20 = 20,964.68 : x
  2. Step 2: Convert to fraction form
    58,405.44/87,568.20 = 20,964.68/x
  3. Step 3: Cross multiply
    58,405.44x = 87,568.20 × 20,964.68
  4. Step 4: Simplify right side
    58,405.44x = 1,835,839,291.18
  5. Step 5: Solve for x
    x = 1,835,839,291.18/58,405.44
  6. Step 6: Final answer
    x = 31,432.68

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