Finding the Fourth Proportional to 31,106.16, 42,930.95 and 17,674.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,106.16 : 42,930.95 = 17,674.74 : x
2. Step 2: Convert to fraction form
   31,106.16/42,930.95 = 17,674.74/x
3. Step 3: Cross multiply
   31,106.16x = 42,930.95 × 17,674.74
4. Step 4: Simplify right side
   31,106.16x = 758,793,290.83
5. Step 5: Solve for x
   x = 758,793,290.83/31,106.16
6. Step 6: Final answer
   x = 24,393.67