Finding the Fourth Proportional to 78,705, 108,611.55 and 42,895.44

Step by Step Solution

1. Step 1: Write the proportion equation
   78,705 : 108,611.55 = 42,895.44 : x
2. Step 2: Convert to fraction form
   78,705/108,611.55 = 42,895.44/x
3. Step 3: Cross multiply
   78,705x = 108,611.55 × 42,895.44
4. Step 4: Simplify right side
   78,705x = 4,658,940,226.33
5. Step 5: Solve for x
   x = 4,658,940,226.33/78,705
6. Step 6: Final answer
   x = 59,194.97