Finding the Fourth Proportional to 31,293.25, 43,188.30 and 17,866.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,293.25 : 43,188.30 = 17,866.42 : x
2. Step 2: Convert to fraction form
   31,293.25/43,188.30 = 17,866.42/x
3. Step 3: Cross multiply
   31,293.25x = 43,188.30 × 17,866.42
4. Step 4: Simplify right side
   31,293.25x = 771,620,306.89
5. Step 5: Solve for x
   x = 771,620,306.89/31,293.25
6. Step 6: Final answer
   x = 24,657.72