Finding the Fourth Proportional to 12,711.15, 17,539.71 and 7,045.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,711.15 : 17,539.71 = 7,045.61 : x
2. Step 2: Convert to fraction form
   12,711.15/17,539.71 = 7,045.61/x
3. Step 3: Cross multiply
   12,711.15x = 17,539.71 × 7,045.61
4. Step 4: Simplify right side
   12,711.15x = 123,577,868.47
5. Step 5: Solve for x
   x = 123,577,868.47/12,711.15
6. Step 6: Final answer
   x = 9,722.01