Finding the Fourth Proportional to 80,616.57, 111,259.88 and 48,784.78

Step by Step Solution

1. Step 1: Write the proportion equation
   80,616.57 : 111,259.88 = 48,784.78 : x
2. Step 2: Convert to fraction form
   80,616.57/111,259.88 = 48,784.78/x
3. Step 3: Cross multiply
   80,616.57x = 111,259.88 × 48,784.78
4. Step 4: Simplify right side
   80,616.57x = 5,427,788,768.63
5. Step 5: Solve for x
   x = 5,427,788,768.63/80,616.57
6. Step 6: Final answer
   x = 67,328.45