Finding the Fourth Proportional to 10,288.28, 15,433.12 and 5,092.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,288.28 : 15,433.12 = 5,092.76 : x
2. Step 2: Convert to fraction form
   10,288.28/15,433.12 = 5,092.76/x
3. Step 3: Cross multiply
   10,288.28x = 15,433.12 × 5,092.76
4. Step 4: Simplify right side
   10,288.28x = 78,597,176.21
5. Step 5: Solve for x
   x = 78,597,176.21/10,288.28
6. Step 6: Final answer
   x = 7,639.49