Finding the Fourth Proportional to 11,111.29, 15,337.43 and 6,397.45

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.29 : 15,337.43 = 6,397.45 : x
2. Step 2: Convert to fraction form
   11,111.29/15,337.43 = 6,397.45/x
3. Step 3: Cross multiply
   11,111.29x = 15,337.43 × 6,397.45
4. Step 4: Simplify right side
   11,111.29x = 98,120,441.55
5. Step 5: Solve for x
   x = 98,120,441.55/11,111.29
6. Step 6: Final answer
   x = 8,830.70