Finding the Fourth Proportional to 11,499.32, 17,243.52 and 5,257.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,499.32 : 17,243.52 = 5,257.48 : x
2. Step 2: Convert to fraction form
   11,499.32/17,243.52 = 5,257.48/x
3. Step 3: Cross multiply
   11,499.32x = 17,243.52 × 5,257.48
4. Step 4: Simplify right side
   11,499.32x = 90,657,461.53
5. Step 5: Solve for x
   x = 90,657,461.53/11,499.32
6. Step 6: Final answer
   x = 7,883.72