Finding the Fourth Proportional to 78,705.83, 108,610.83 and 42,895.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,705.83 : 108,610.83 = 42,895.04 : x
2. Step 2: Convert to fraction form
   78,705.83/108,610.83 = 42,895.04/x
3. Step 3: Cross multiply
   78,705.83x = 108,610.83 × 42,895.04
4. Step 4: Simplify right side
   78,705.83x = 4,658,865,897.28
5. Step 5: Solve for x
   x = 4,658,865,897.28/78,705.83
6. Step 6: Final answer
   x = 59,193.40