Finding the Fourth Proportional to 31,062.44, 42,866.22 and 16,915.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,062.44 : 42,866.22 = 16,915.34 : x
2. Step 2: Convert to fraction form
   31,062.44/42,866.22 = 16,915.34/x
3. Step 3: Cross multiply
   31,062.44x = 42,866.22 × 16,915.34
4. Step 4: Simplify right side
   31,062.44x = 725,096,471.48
5. Step 5: Solve for x
   x = 725,096,471.48/31,062.44
6. Step 6: Final answer
   x = 23,343.19