Finding the Fourth Proportional to 11,099.53, 16,657.52 and 5,256.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,099.53 : 16,657.52 = 5,256.16 : x
2. Step 2: Convert to fraction form
   11,099.53/16,657.52 = 5,256.16/x
3. Step 3: Cross multiply
   11,099.53x = 16,657.52 × 5,256.16
4. Step 4: Simplify right side
   11,099.53x = 87,554,522.40
5. Step 5: Solve for x
   x = 87,554,522.40/11,099.53
6. Step 6: Final answer
   x = 7,888.13