Finding the Fourth Proportional to 31,131, 42,955.92 and 17,702.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,131 : 42,955.92 = 17,702.82 : x
2. Step 2: Convert to fraction form
   31,131/42,955.92 = 17,702.82/x
3. Step 3: Cross multiply
   31,131x = 42,955.92 × 17,702.82
4. Step 4: Simplify right side
   31,131x = 760,440,919.69
5. Step 5: Solve for x
   x = 760,440,919.69/31,131
6. Step 6: Final answer
   x = 24,427.13