Finding the Fourth Proportional to 11,385.94, 17,080.96 and 5,148.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,385.94 : 17,080.96 = 5,148.88 : x
2. Step 2: Convert to fraction form
   11,385.94/17,080.96 = 5,148.88/x
3. Step 3: Cross multiply
   11,385.94x = 17,080.96 × 5,148.88
4. Step 4: Simplify right side
   11,385.94x = 87,947,813.32
5. Step 5: Solve for x
   x = 87,947,813.32/11,385.94
6. Step 6: Final answer
   x = 7,724.25