Finding the Fourth Proportional to 78,706.37, 108,611.61 and 42,895.61

Step by Step Solution

1. Step 1: Write the proportion equation
   78,706.37 : 108,611.61 = 42,895.61 : x
2. Step 2: Convert to fraction form
   78,706.37/108,611.61 = 42,895.61/x
3. Step 3: Cross multiply
   78,706.37x = 108,611.61 × 42,895.61
4. Step 4: Simplify right side
   78,706.37x = 4,658,961,264.03
5. Step 5: Solve for x
   x = 4,658,961,264.03/78,706.37
6. Step 6: Final answer
   x = 59,194.21