Finding the Fourth Proportional to 22,915.23, 31,623.89 and 12,843.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,915.23 : 31,623.89 = 12,843.86 : x
2. Step 2: Convert to fraction form
   22,915.23/31,623.89 = 12,843.86/x
3. Step 3: Cross multiply
   22,915.23x = 31,623.89 × 12,843.86
4. Step 4: Simplify right side
   22,915.23x = 406,172,593.48
5. Step 5: Solve for x
   x = 406,172,593.48/22,915.23
6. Step 6: Final answer
   x = 17,725.01