Finding the Fourth Proportional to 12,510.72, 18,641.76 and 11,132.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.72 : 18,641.76 = 11,132.16 : x
2. Step 2: Convert to fraction form
   12,510.72/18,641.76 = 11,132.16/x
3. Step 3: Cross multiply
   12,510.72x = 18,641.76 × 11,132.16
4. Step 4: Simplify right side
   12,510.72x = 207,523,055.00
5. Step 5: Solve for x
   x = 207,523,055.00/12,510.72
6. Step 6: Final answer
   x = 16,587.62