Finding the Fourth Proportional to 31,246.35, 43,120.71 and 17,818.89

Step by Step Solution

1. Step 1: Write the proportion equation
   31,246.35 : 43,120.71 = 17,818.89 : x
2. Step 2: Convert to fraction form
   31,246.35/43,120.71 = 17,818.89/x
3. Step 3: Cross multiply
   31,246.35x = 43,120.71 × 17,818.89
4. Step 4: Simplify right side
   31,246.35x = 768,363,188.21
5. Step 5: Solve for x
   x = 768,363,188.21/31,246.35
6. Step 6: Final answer
   x = 24,590.49