Finding the Fourth Proportional to 74,540.89, 111,863.18 and 48,180.25

Step by Step Solution

1. Step 1: Write the proportion equation
   74,540.89 : 111,863.18 = 48,180.25 : x
2. Step 2: Convert to fraction form
   74,540.89/111,863.18 = 48,180.25/x
3. Step 3: Cross multiply
   74,540.89x = 111,863.18 × 48,180.25
4. Step 4: Simplify right side
   74,540.89x = 5,389,595,978.20
5. Step 5: Solve for x
   x = 5,389,595,978.20/74,540.89
6. Step 6: Final answer
   x = 72,303.89