Finding the Fourth Proportional to 78,704.24, 108,613.92 and 42,896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,704.24 : 108,613.92 = 42,896.72 : x
2. Step 2: Convert to fraction form
   78,704.24/108,613.92 = 42,896.72/x
3. Step 3: Cross multiply
   78,704.24x = 108,613.92 × 42,896.72
4. Step 4: Simplify right side
   78,704.24x = 4,659,180,914.34
5. Step 5: Solve for x
   x = 4,659,180,914.34/78,704.24
6. Step 6: Final answer
   x = 59,198.60