Finding the Fourth Proportional to 22,648.42, 31,257.70 and 13,695.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,648.42 : 31,257.70 = 13,695.98 : x
2. Step 2: Convert to fraction form
   22,648.42/31,257.70 = 13,695.98/x
3. Step 3: Cross multiply
   22,648.42x = 31,257.70 × 13,695.98
4. Step 4: Simplify right side
   22,648.42x = 428,104,834.05
5. Step 5: Solve for x
   x = 428,104,834.05/22,648.42
6. Step 6: Final answer
   x = 18,902.19