Finding the Fourth Proportional to 11,701.62, 16,155.38 and 7,617.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,701.62 : 16,155.38 = 7,617.29 : x
2. Step 2: Convert to fraction form
   11,701.62/16,155.38 = 7,617.29/x
3. Step 3: Cross multiply
   11,701.62x = 16,155.38 × 7,617.29
4. Step 4: Simplify right side
   11,701.62x = 123,060,289.10
5. Step 5: Solve for x
   x = 123,060,289.10/11,701.62
6. Step 6: Final answer
   x = 10,516.52