Finding the Fourth Proportional to 80,718.72, 111,365.28 and 48,875.52

Step by Step Solution

1. Step 1: Write the proportion equation
   80,718.72 : 111,365.28 = 48,875.52 : x
2. Step 2: Convert to fraction form
   80,718.72/111,365.28 = 48,875.52/x
3. Step 3: Cross multiply
   80,718.72x = 111,365.28 × 48,875.52
4. Step 4: Simplify right side
   80,718.72x = 5,443,035,969.95
5. Step 5: Solve for x
   x = 5,443,035,969.95/80,718.72
6. Step 6: Final answer
   x = 67,432.14