Finding the Fourth Proportional to 12,726.86, 17,562.80 and 7,061.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,726.86 : 17,562.80 = 7,061.49 : x
2. Step 2: Convert to fraction form
   12,726.86/17,562.80 = 7,061.49/x
3. Step 3: Cross multiply
   12,726.86x = 17,562.80 × 7,061.49
4. Step 4: Simplify right side
   12,726.86x = 124,019,536.91
5. Step 5: Solve for x
   x = 124,019,536.91/12,726.86
6. Step 6: Final answer
   x = 9,744.71