Finding the Fourth Proportional to 12,538.17, 17,304.57 and 7,231.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,538.17 : 17,304.57 = 7,231.86 : x
2. Step 2: Convert to fraction form
   12,538.17/17,304.57 = 7,231.86/x
3. Step 3: Cross multiply
   12,538.17x = 17,304.57 × 7,231.86
4. Step 4: Simplify right side
   12,538.17x = 125,144,227.60
5. Step 5: Solve for x
   x = 125,144,227.60/12,538.17
6. Step 6: Final answer
   x = 9,981.06