Finding the Fourth Proportional to 31,099.96, 42,917.94 and 17,671.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,099.96 : 42,917.94 = 17,671.24 : x
2. Step 2: Convert to fraction form
   31,099.96/42,917.94 = 17,671.24/x
3. Step 3: Cross multiply
   31,099.96x = 42,917.94 × 17,671.24
4. Step 4: Simplify right side
   31,099.96x = 758,413,218.05
5. Step 5: Solve for x
   x = 758,413,218.05/31,099.96
6. Step 6: Final answer
   x = 24,386.31