Finding the Fourth Proportional to 31,662.50, 43,714.17 and 20,336.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,662.50 : 43,714.17 = 20,336.58 : x
2. Step 2: Convert to fraction form
   31,662.50/43,714.17 = 20,336.58/x
3. Step 3: Cross multiply
   31,662.50x = 43,714.17 × 20,336.58
4. Step 4: Simplify right side
   31,662.50x = 888,996,715.34
5. Step 5: Solve for x
   x = 888,996,715.34/31,662.50
6. Step 6: Final answer
   x = 28,077.28