Finding the Fourth Proportional to 10,487.72, 14,461.20 and 8,092.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.72 : 14,461.20 = 8,092.28 : x
2. Step 2: Convert to fraction form
   10,487.72/14,461.20 = 8,092.28/x
3. Step 3: Cross multiply
   10,487.72x = 14,461.20 × 8,092.28
4. Step 4: Simplify right side
   10,487.72x = 117,024,079.54
5. Step 5: Solve for x
   x = 117,024,079.54/10,487.72
6. Step 6: Final answer
   x = 11,158.20