Finding the Fourth Proportional to 31,100.30, 42,916.79 and 17,669.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.30 : 42,916.79 = 17,669.69 : x
2. Step 2: Convert to fraction form
   31,100.30/42,916.79 = 17,669.69/x
3. Step 3: Cross multiply
   31,100.30x = 42,916.79 × 17,669.69
4. Step 4: Simplify right side
   31,100.30x = 758,326,375.10
5. Step 5: Solve for x
   x = 758,326,375.10/31,100.30
6. Step 6: Final answer
   x = 24,383.25