Finding the Fourth Proportional to 78,705.56, 108,612.24 and 42,895.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,705.56 : 108,612.24 = 42,895.88 : x
2. Step 2: Convert to fraction form
   78,705.56/108,612.24 = 42,895.88/x
3. Step 3: Cross multiply
   78,705.56x = 108,612.24 × 42,895.88
4. Step 4: Simplify right side
   78,705.56x = 4,659,017,613.57
5. Step 5: Solve for x
   x = 4,659,017,613.57/78,705.56
6. Step 6: Final answer
   x = 59,195.53