Finding the Fourth Proportional to 10,049.28, 15,086.88 and 5,435.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,049.28 : 15,086.88 = 5,435.52 : x
2. Step 2: Convert to fraction form
   10,049.28/15,086.88 = 5,435.52/x
3. Step 3: Cross multiply
   10,049.28x = 15,086.88 × 5,435.52
4. Step 4: Simplify right side
   10,049.28x = 82,005,037.98
5. Step 5: Solve for x
   x = 82,005,037.98/10,049.28
6. Step 6: Final answer
   x = 8,160.29