Finding the Fourth Proportional to 22,516.69, 31,071.01 and 12,954.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,516.69 : 31,071.01 = 12,954.04 : x
2. Step 2: Convert to fraction form
   22,516.69/31,071.01 = 12,954.04/x
3. Step 3: Cross multiply
   22,516.69x = 31,071.01 × 12,954.04
4. Step 4: Simplify right side
   22,516.69x = 402,495,106.38
5. Step 5: Solve for x
   x = 402,495,106.38/22,516.69
6. Step 6: Final answer
   x = 17,875.41