Finding the Fourth Proportional to 78,777.35, 108,729.60 and 46,499.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,777.35 : 108,729.60 = 46,499.96 : x
2. Step 2: Convert to fraction form
   78,777.35/108,729.60 = 46,499.96/x
3. Step 3: Cross multiply
   78,777.35x = 108,729.60 × 46,499.96
4. Step 4: Simplify right side
   78,777.35x = 5,055,922,050.82
5. Step 5: Solve for x
   x = 5,055,922,050.82/78,777.35
6. Step 6: Final answer
   x = 64,179.89