Finding the Fourth Proportional to 31,099.83, 42,916.22 and 17,669.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,099.83 : 42,916.22 = 17,669.31 : x
2. Step 2: Convert to fraction form
   31,099.83/42,916.22 = 17,669.31/x
3. Step 3: Cross multiply
   31,099.83x = 42,916.22 × 17,669.31
4. Step 4: Simplify right side
   31,099.83x = 758,299,906.86
5. Step 5: Solve for x
   x = 758,299,906.86/31,099.83
6. Step 6: Final answer
   x = 24,382.77