Finding the Fourth Proportional to 78,829.73, 108,756.52 and 60,686

Step by Step Solution

1. Step 1: Write the proportion equation
   78,829.73 : 108,756.52 = 60,686 : x
2. Step 2: Convert to fraction form
   78,829.73/108,756.52 = 60,686/x
3. Step 3: Cross multiply
   78,829.73x = 108,756.52 × 60,686
4. Step 4: Simplify right side
   78,829.73x = 6,599,998,172.72
5. Step 5: Solve for x
   x = 6,599,998,172.72/78,829.73
6. Step 6: Final answer
   x = 83,724.73