Finding the Fourth Proportional to 78,706.62, 108,611.96 and 42,895.86

Step by Step Solution

1. Step 1: Write the proportion equation
   78,706.62 : 108,611.96 = 42,895.86 : x
2. Step 2: Convert to fraction form
   78,706.62/108,611.96 = 42,895.86/x
3. Step 3: Cross multiply
   78,706.62x = 108,611.96 × 42,895.86
4. Step 4: Simplify right side
   78,706.62x = 4,659,003,216.01
5. Step 5: Solve for x
   x = 4,659,003,216.01/78,706.62
6. Step 6: Final answer
   x = 59,194.55