Finding the Fourth Proportional to 12,411.56, 17,128.37 and 7,306.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,411.56 : 17,128.37 = 7,306.15 : x
2. Step 2: Convert to fraction form
   12,411.56/17,128.37 = 7,306.15/x
3. Step 3: Cross multiply
   12,411.56x = 17,128.37 × 7,306.15
4. Step 4: Simplify right side
   12,411.56x = 125,142,483.30
5. Step 5: Solve for x
   x = 125,142,483.30/12,411.56
6. Step 6: Final answer
   x = 10,082.74