Finding the Fourth Proportional to 78,705.87, 108,614.61 and 42,895.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,705.87 : 108,614.61 = 42,895.77 : x
2. Step 2: Convert to fraction form
   78,705.87/108,614.61 = 42,895.77/x
3. Step 3: Cross multiply
   78,705.87x = 108,614.61 × 42,895.77
4. Step 4: Simplify right side
   78,705.87x = 4,659,107,329.20
5. Step 5: Solve for x
   x = 4,659,107,329.20/78,705.87
6. Step 6: Final answer
   x = 59,196.44