Finding the Fourth Proportional to 22,516.98, 31,072.17 and 12,950.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,516.98 : 31,072.17 = 12,950.47 : x
2. Step 2: Convert to fraction form
   22,516.98/31,072.17 = 12,950.47/x
3. Step 3: Cross multiply
   22,516.98x = 31,072.17 × 12,950.47
4. Step 4: Simplify right side
   22,516.98x = 402,399,205.42
5. Step 5: Solve for x
   x = 402,399,205.42/22,516.98
6. Step 6: Final answer
   x = 17,870.92