Finding the Fourth Proportional to 11,061.55, 16,594.75 and 8,130.97

Step by Step Solution

1. Step 1: Write the proportion equation
   11,061.55 : 16,594.75 = 8,130.97 : x
2. Step 2: Convert to fraction form
   11,061.55/16,594.75 = 8,130.97/x
3. Step 3: Cross multiply
   11,061.55x = 16,594.75 × 8,130.97
4. Step 4: Simplify right side
   11,061.55x = 134,931,290.78
5. Step 5: Solve for x
   x = 134,931,290.78/11,061.55
6. Step 6: Final answer
   x = 12,198.23