Finding the Fourth Proportional to 12,510.15, 17,260.76 and 7,472.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.15 : 17,260.76 = 7,472.15 : x
2. Step 2: Convert to fraction form
   12,510.15/17,260.76 = 7,472.15/x
3. Step 3: Cross multiply
   12,510.15x = 17,260.76 × 7,472.15
4. Step 4: Simplify right side
   12,510.15x = 128,974,987.83
5. Step 5: Solve for x
   x = 128,974,987.83/12,510.15
6. Step 6: Final answer
   x = 10,309.63