Finding the Fourth Proportional to 11,726.50, 17,589.55 and 2,961.35

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726.50 : 17,589.55 = 2,961.35 : x
2. Step 2: Convert to fraction form
   11,726.50/17,589.55 = 2,961.35/x
3. Step 3: Cross multiply
   11,726.50x = 17,589.55 × 2,961.35
4. Step 4: Simplify right side
   11,726.50x = 52,088,813.89
5. Step 5: Solve for x
   x = 52,088,813.89/11,726.50
6. Step 6: Final answer
   x = 4,441.97