Finding the Fourth Proportional to 11,012.55, 15,180.53 and 8,650.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,012.55 : 15,180.53 = 8,650.59 : x
2. Step 2: Convert to fraction form
   11,012.55/15,180.53 = 8,650.59/x
3. Step 3: Cross multiply
   11,012.55x = 15,180.53 × 8,650.59
4. Step 4: Simplify right side
   11,012.55x = 131,320,541.01
5. Step 5: Solve for x
   x = 131,320,541.01/11,012.55
6. Step 6: Final answer
   x = 11,924.63