Finding the Fourth Proportional to 11,726.40, 17,586.84 and 3,404.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726.40 : 17,586.84 = 3,404.22 : x
2. Step 2: Convert to fraction form
   11,726.40/17,586.84 = 3,404.22/x
3. Step 3: Cross multiply
   11,726.40x = 17,586.84 × 3,404.22
4. Step 4: Simplify right side
   11,726.40x = 59,869,472.46
5. Step 5: Solve for x
   x = 59,869,472.46/11,726.40
6. Step 6: Final answer
   x = 5,105.53