Finding the Fourth Proportional to 31,089.92, 42,902.40 and 17,841.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,089.92 : 42,902.40 = 17,841.92 : x
2. Step 2: Convert to fraction form
   31,089.92/42,902.40 = 17,841.92/x
3. Step 3: Cross multiply
   31,089.92x = 42,902.40 × 17,841.92
4. Step 4: Simplify right side
   31,089.92x = 765,461,188.61
5. Step 5: Solve for x
   x = 765,461,188.61/31,089.92
6. Step 6: Final answer
   x = 24,620.88