Finding the Fourth Proportional to 12,630.09, 17,429.25 and 7,325.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,630.09 : 17,429.25 = 7,325.40 : x
2. Step 2: Convert to fraction form
   12,630.09/17,429.25 = 7,325.40/x
3. Step 3: Cross multiply
   12,630.09x = 17,429.25 × 7,325.40
4. Step 4: Simplify right side
   12,630.09x = 127,676,227.95
5. Step 5: Solve for x
   x = 127,676,227.95/12,630.09
6. Step 6: Final answer
   x = 10,108.89