Finding the Fourth Proportional to 12,495.40, 17,240.81 and 7,461.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,495.40 : 17,240.81 = 7,461.25 : x
2. Step 2: Convert to fraction form
   12,495.40/17,240.81 = 7,461.25/x
3. Step 3: Cross multiply
   12,495.40x = 17,240.81 × 7,461.25
4. Step 4: Simplify right side
   12,495.40x = 128,637,993.61
5. Step 5: Solve for x
   x = 128,637,993.61/12,495.40
6. Step 6: Final answer
   x = 10,294.83