Finding the Fourth Proportional to 78,771.83, 108,706.32 and 42,961.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,771.83 : 108,706.32 = 42,961.73 : x
2. Step 2: Convert to fraction form
   78,771.83/108,706.32 = 42,961.73/x
3. Step 3: Cross multiply
   78,771.83x = 108,706.32 × 42,961.73
4. Step 4: Simplify right side
   78,771.83x = 4,670,211,025.60
5. Step 5: Solve for x
   x = 4,670,211,025.60/78,771.83
6. Step 6: Final answer
   x = 59,287.84