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Finding the Fourth Proportional to 18,986.13, 26,200.94 and 10,602.63

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Solution

The fourth proportional to 18,986.13, 26,200.94 and 10,602.63 is: 14,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.13 : 26,200.94 = 10,602.63 : x
  2. Step 2: Convert to fraction form
    18,986.13/26,200.94 = 10,602.63/x
  3. Step 3: Cross multiply
    18,986.13x = 26,200.94 × 10,602.63
  4. Step 4: Simplify right side
    18,986.13x = 277,798,819.46
  5. Step 5: Solve for x
    x = 277,798,819.46/18,986.13
  6. Step 6: Final answer
    x = 14,631.67

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