Finding the Fourth Proportional to 11,498.10, 15,863.22 and 7,521.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,498.10 : 15,863.22 = 7,521.48 : x
2. Step 2: Convert to fraction form
   11,498.10/15,863.22 = 7,521.48/x
3. Step 3: Cross multiply
   11,498.10x = 15,863.22 × 7,521.48
4. Step 4: Simplify right side
   11,498.10x = 119,314,891.97
5. Step 5: Solve for x
   x = 119,314,891.97/11,498.10
6. Step 6: Final answer
   x = 10,376.92