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Finding the Fourth Proportional to 12,664.74, 18,993.45 and 4,871.70

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Solution

The fourth proportional to 12,664.74, 18,993.45 and 4,871.70 is: 7,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.74 : 18,993.45 = 4,871.70 : x
  2. Step 2: Convert to fraction form
    12,664.74/18,993.45 = 4,871.70/x
  3. Step 3: Cross multiply
    12,664.74x = 18,993.45 × 4,871.70
  4. Step 4: Simplify right side
    12,664.74x = 92,530,390.37
  5. Step 5: Solve for x
    x = 92,530,390.37/12,664.74
  6. Step 6: Final answer
    x = 7,306.14

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