Finding the Fourth Proportional to 11,098.08, 16,661.70 and 7,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,098.08 : 16,661.70 = 7,812.72 : x
2. Step 2: Convert to fraction form
   11,098.08/16,661.70 = 7,812.72/x
3. Step 3: Cross multiply
   11,098.08x = 16,661.70 × 7,812.72
4. Step 4: Simplify right side
   11,098.08x = 130,173,196.82
5. Step 5: Solve for x
   x = 130,173,196.82/11,098.08
6. Step 6: Final answer
   x = 11,729.34