Finding the Fourth Proportional to 78,442.20, 108,250.92 and 42,632.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,442.20 : 108,250.92 = 42,632.23 : x
2. Step 2: Convert to fraction form
   78,442.20/108,250.92 = 42,632.23/x
3. Step 3: Cross multiply
   78,442.20x = 108,250.92 × 42,632.23
4. Step 4: Simplify right side
   78,442.20x = 4,614,978,119.15
5. Step 5: Solve for x
   x = 4,614,978,119.15/78,442.20
6. Step 6: Final answer
   x = 58,832.85