Finding the Fourth Proportional to 57,640.50, 79,543.89 and 32,490.90

Step by Step Solution

1. Step 1: Write the proportion equation
   57,640.50 : 79,543.89 = 32,490.90 : x
2. Step 2: Convert to fraction form
   57,640.50/79,543.89 = 32,490.90/x
3. Step 3: Cross multiply
   57,640.50x = 79,543.89 × 32,490.90
4. Step 4: Simplify right side
   57,640.50x = 2,584,452,575.60
5. Step 5: Solve for x
   x = 2,584,452,575.60/57,640.50
6. Step 6: Final answer
   x = 44,837.44