Finding the Fourth Proportional to 22,715.98, 31,351.36 and 13,641.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,715.98 : 31,351.36 = 13,641.94 : x
2. Step 2: Convert to fraction form
   22,715.98/31,351.36 = 13,641.94/x
3. Step 3: Cross multiply
   22,715.98x = 31,351.36 × 13,641.94
4. Step 4: Simplify right side
   22,715.98x = 427,693,372.04
5. Step 5: Solve for x
   x = 427,693,372.04/22,715.98
6. Step 6: Final answer
   x = 18,827.86