Finding the Fourth Proportional to 11,253.62, 16,880.56 and 5,328.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,253.62 : 16,880.56 = 5,328.60 : x
2. Step 2: Convert to fraction form
   11,253.62/16,880.56 = 5,328.60/x
3. Step 3: Cross multiply
   11,253.62x = 16,880.56 × 5,328.60
4. Step 4: Simplify right side
   11,253.62x = 89,949,752.02
5. Step 5: Solve for x
   x = 89,949,752.02/11,253.62
6. Step 6: Final answer
   x = 7,992.96