Finding the Fourth Proportional to 12,620.07, 17,414.87 and 7,581.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,620.07 : 17,414.87 = 7,581.29 : x
2. Step 2: Convert to fraction form
   12,620.07/17,414.87 = 7,581.29/x
3. Step 3: Cross multiply
   12,620.07x = 17,414.87 × 7,581.29
4. Step 4: Simplify right side
   12,620.07x = 132,027,054.80
5. Step 5: Solve for x
   x = 132,027,054.80/12,620.07
6. Step 6: Final answer
   x = 10,461.67