Finding the Fourth Proportional to 31,915.79, 44,045.72 and 18,491.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,915.79 : 44,045.72 = 18,491.27 : x
2. Step 2: Convert to fraction form
   31,915.79/44,045.72 = 18,491.27/x
3. Step 3: Cross multiply
   31,915.79x = 44,045.72 × 18,491.27
4. Step 4: Simplify right side
   31,915.79x = 814,461,300.86
5. Step 5: Solve for x
   x = 814,461,300.86/31,915.79
6. Step 6: Final answer
   x = 25,519.07