Finding the Fourth Proportional to 78,705.99, 108,611.09 and 42,895.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,705.99 : 108,611.09 = 42,895.23 : x
2. Step 2: Convert to fraction form
   78,705.99/108,611.09 = 42,895.23/x
3. Step 3: Cross multiply
   78,705.99x = 108,611.09 × 42,895.23
4. Step 4: Simplify right side
   78,705.99x = 4,658,897,686.10
5. Step 5: Solve for x
   x = 4,658,897,686.10/78,705.99
6. Step 6: Final answer
   x = 59,193.69