Finding the Fourth Proportional to 11,114.61, 15,335.89 and 6,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,114.61 : 15,335.89 = 6,636.72 : x
2. Step 2: Convert to fraction form
   11,114.61/15,335.89 = 6,636.72/x
3. Step 3: Cross multiply
   11,114.61x = 15,335.89 × 6,636.72
4. Step 4: Simplify right side
   11,114.61x = 101,780,007.88
5. Step 5: Solve for x
   x = 101,780,007.88/11,114.61
6. Step 6: Final answer
   x = 9,157.32