Finding the Fourth Proportional to 22,159.60, 30,578.52 and 12,726.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,159.60 : 30,578.52 = 12,726.34 : x
2. Step 2: Convert to fraction form
   22,159.60/30,578.52 = 12,726.34/x
3. Step 3: Cross multiply
   22,159.60x = 30,578.52 × 12,726.34
4. Step 4: Simplify right side
   22,159.60x = 389,152,642.22
5. Step 5: Solve for x
   x = 389,152,642.22/22,159.60
6. Step 6: Final answer
   x = 17,561.36