Finding the Fourth Proportional to 78,799.77, 108,778.59 and 46,979.73

Step by Step Solution

1. Step 1: Write the proportion equation
   78,799.77 : 108,778.59 = 46,979.73 : x
2. Step 2: Convert to fraction form
   78,799.77/108,778.59 = 46,979.73/x
3. Step 3: Cross multiply
   78,799.77x = 108,778.59 × 46,979.73
4. Step 4: Simplify right side
   78,799.77x = 5,110,388,787.98
5. Step 5: Solve for x
   x = 5,110,388,787.98/78,799.77
6. Step 6: Final answer
   x = 64,852.84