Finding the Fourth Proportional to 78,615.66, 108,472.71 and 46,778.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,615.66 : 108,472.71 = 46,778.34 : x
2. Step 2: Convert to fraction form
   78,615.66/108,472.71 = 46,778.34/x
3. Step 3: Cross multiply
   78,615.66x = 108,472.71 × 46,778.34
4. Step 4: Simplify right side
   78,615.66x = 5,074,173,309.10
5. Step 5: Solve for x
   x = 5,074,173,309.10/78,615.66
6. Step 6: Final answer
   x = 64,544.05