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Finding the Fourth Proportional to 59,903.80, 89,855.70 and 18,345.40

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Solution

The fourth proportional to 59,903.80, 89,855.70 and 18,345.40 is: 27,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,903.80 : 89,855.70 = 18,345.40 : x
  2. Step 2: Convert to fraction form
    59,903.80/89,855.70 = 18,345.40/x
  3. Step 3: Cross multiply
    59,903.80x = 89,855.70 × 18,345.40
  4. Step 4: Simplify right side
    59,903.80x = 1,648,438,758.78
  5. Step 5: Solve for x
    x = 1,648,438,758.78/59,903.80
  6. Step 6: Final answer
    x = 27,518.10

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