Finding the Fourth Proportional to 11,807.08, 16,290.42 and 7,617.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,807.08 : 16,290.42 = 7,617.76 : x
2. Step 2: Convert to fraction form
   11,807.08/16,290.42 = 7,617.76/x
3. Step 3: Cross multiply
   11,807.08x = 16,290.42 × 7,617.76
4. Step 4: Simplify right side
   11,807.08x = 124,096,509.86
5. Step 5: Solve for x
   x = 124,096,509.86/11,807.08
6. Step 6: Final answer
   x = 10,510.35