Finding the Fourth Proportional to 12,927.38, 17,839.28 and 7,900.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,927.38 : 17,839.28 = 7,900.02 : x
2. Step 2: Convert to fraction form
   12,927.38/17,839.28 = 7,900.02/x
3. Step 3: Cross multiply
   12,927.38x = 17,839.28 × 7,900.02
4. Step 4: Simplify right side
   12,927.38x = 140,930,668.79
5. Step 5: Solve for x
   x = 140,930,668.79/12,927.38
6. Step 6: Final answer
   x = 10,901.72