Finding the Fourth Proportional to 78,705.32, 108,613.49 and 42,895.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,705.32 : 108,613.49 = 42,895.35 : x
2. Step 2: Convert to fraction form
   78,705.32/108,613.49 = 42,895.35/x
3. Step 3: Cross multiply
   78,705.32x = 108,613.49 × 42,895.35
4. Step 4: Simplify right side
   78,705.32x = 4,659,013,453.79
5. Step 5: Solve for x
   x = 4,659,013,453.79/78,705.32
6. Step 6: Final answer
   x = 59,195.66