Finding the Fourth Proportional to 11,475.68, 15,843.98 and 7,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,475.68 : 15,843.98 = 7,949.72 : x
2. Step 2: Convert to fraction form
   11,475.68/15,843.98 = 7,949.72/x
3. Step 3: Cross multiply
   11,475.68x = 15,843.98 × 7,949.72
4. Step 4: Simplify right side
   11,475.68x = 125,955,204.69
5. Step 5: Solve for x
   x = 125,955,204.69/11,475.68
6. Step 6: Final answer
   x = 10,975.84