Finding the Fourth Proportional to 72,883.78, 100,545.24 and 42,650.55

Step by Step Solution

1. Step 1: Write the proportion equation
   72,883.78 : 100,545.24 = 42,650.55 : x
2. Step 2: Convert to fraction form
   72,883.78/100,545.24 = 42,650.55/x
3. Step 3: Cross multiply
   72,883.78x = 100,545.24 × 42,650.55
4. Step 4: Simplify right side
   72,883.78x = 4,288,309,785.88
5. Step 5: Solve for x
   x = 4,288,309,785.88/72,883.78
6. Step 6: Final answer
   x = 58,837.64