Finding the Fourth Proportional to 12,382.74, 17,082.50 and 7,904.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382.74 : 17,082.50 = 7,904.25 : x
2. Step 2: Convert to fraction form
   12,382.74/17,082.50 = 7,904.25/x
3. Step 3: Cross multiply
   12,382.74x = 17,082.50 × 7,904.25
4. Step 4: Simplify right side
   12,382.74x = 135,024,311.10
5. Step 5: Solve for x
   x = 135,024,311.10/12,382.74
6. Step 6: Final answer
   x = 10,904.24