Finding the Fourth Proportional to 22,255.86, 30,716.46 and 12,695.70

Step by Step Solution

1. Step 1: Write the proportion equation
   22,255.86 : 30,716.46 = 12,695.70 : x
2. Step 2: Convert to fraction form
   22,255.86/30,716.46 = 12,695.70/x
3. Step 3: Cross multiply
   22,255.86x = 30,716.46 × 12,695.70
4. Step 4: Simplify right side
   22,255.86x = 389,966,961.22
5. Step 5: Solve for x
   x = 389,966,961.22/22,255.86
6. Step 6: Final answer
   x = 17,521.99