Finding the Fourth Proportional to 78,672.18, 108,559.32 and 46,836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,672.18 : 108,559.32 = 46,836.72 : x
2. Step 2: Convert to fraction form
   78,672.18/108,559.32 = 46,836.72/x
3. Step 3: Cross multiply
   78,672.18x = 108,559.32 × 46,836.72
4. Step 4: Simplify right side
   78,672.18x = 5,084,562,474.23
5. Step 5: Solve for x
   x = 5,084,562,474.23/78,672.18
6. Step 6: Final answer
   x = 64,629.74