Finding the Fourth Proportional to 28,082.72, 42,113.34 and 9,359.16

Step by Step Solution

1. Step 1: Write the proportion equation
   28,082.72 : 42,113.34 = 9,359.16 : x
2. Step 2: Convert to fraction form
   28,082.72/42,113.34 = 9,359.16/x
3. Step 3: Cross multiply
   28,082.72x = 42,113.34 × 9,359.16
4. Step 4: Simplify right side
   28,082.72x = 394,145,592.48
5. Step 5: Solve for x
   x = 394,145,592.48/28,082.72
6. Step 6: Final answer
   x = 14,035.17