Finding the Fourth Proportional to 12,725.95, 17,561.79 and 7,061.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,725.95 : 17,561.79 = 7,061.57 : x
2. Step 2: Convert to fraction form
   12,725.95/17,561.79 = 7,061.57/x
3. Step 3: Cross multiply
   12,725.95x = 17,561.79 × 7,061.57
4. Step 4: Simplify right side
   12,725.95x = 124,013,809.41
5. Step 5: Solve for x
   x = 124,013,809.41/12,725.95
6. Step 6: Final answer
   x = 9,744.95