Finding the Fourth Proportional to 31,256.27, 43,088.82 and 22,288.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,256.27 : 43,088.82 = 22,288.22 : x
2. Step 2: Convert to fraction form
   31,256.27/43,088.82 = 22,288.22/x
3. Step 3: Cross multiply
   31,256.27x = 43,088.82 × 22,288.22
4. Step 4: Simplify right side
   31,256.27x = 960,373,099.70
5. Step 5: Solve for x
   x = 960,373,099.70/31,256.27
6. Step 6: Final answer
   x = 30,725.77