Finding the Fourth Proportional to 80,615.32, 111,258.16 and 48,783.54

Step by Step Solution

1. Step 1: Write the proportion equation
   80,615.32 : 111,258.16 = 48,783.54 : x
2. Step 2: Convert to fraction form
   80,615.32/111,258.16 = 48,783.54/x
3. Step 3: Cross multiply
   80,615.32x = 111,258.16 × 48,783.54
4. Step 4: Simplify right side
   80,615.32x = 5,427,566,898.69
5. Step 5: Solve for x
   x = 5,427,566,898.69/80,615.32
6. Step 6: Final answer
   x = 67,326.74