Finding the Fourth Proportional to 12,730.61, 17,572.32 and 7,426.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730.61 : 17,572.32 = 7,426.46 : x
2. Step 2: Convert to fraction form
   12,730.61/17,572.32 = 7,426.46/x
3. Step 3: Cross multiply
   12,730.61x = 17,572.32 × 7,426.46
4. Step 4: Simplify right side
   12,730.61x = 130,500,175.52
5. Step 5: Solve for x
   x = 130,500,175.52/12,730.61
6. Step 6: Final answer
   x = 10,250.90