Finding the Fourth Proportional to 31,298.58, 43,185 and 17,865.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,298.58 : 43,185 = 17,865.54 : x
2. Step 2: Convert to fraction form
   31,298.58/43,185 = 17,865.54/x
3. Step 3: Cross multiply
   31,298.58x = 43,185 × 17,865.54
4. Step 4: Simplify right side
   31,298.58x = 771,523,344.90
5. Step 5: Solve for x
   x = 771,523,344.90/31,298.58
6. Step 6: Final answer
   x = 24,650.43