Finding the Fourth Proportional to 78,706.10, 108,613.17 and 42,896.41

Step by Step Solution

1. Step 1: Write the proportion equation
   78,706.10 : 108,613.17 = 42,896.41 : x
2. Step 2: Convert to fraction form
   78,706.10/108,613.17 = 42,896.41/x
3. Step 3: Cross multiply
   78,706.10x = 108,613.17 × 42,896.41
4. Step 4: Simplify right side
   78,706.10x = 4,659,114,800.19
5. Step 5: Solve for x
   x = 4,659,114,800.19/78,706.10
6. Step 6: Final answer
   x = 59,196.36