Finding the Fourth Proportional to 78,693.38, 108,596.69 and 42,883.30

Step by Step Solution

1. Step 1: Write the proportion equation
   78,693.38 : 108,596.69 = 42,883.30 : x
2. Step 2: Convert to fraction form
   78,693.38/108,596.69 = 42,883.30/x
3. Step 3: Cross multiply
   78,693.38x = 108,596.69 × 42,883.30
4. Step 4: Simplify right side
   78,693.38x = 4,656,984,436.28
5. Step 5: Solve for x
   x = 4,656,984,436.28/78,693.38
6. Step 6: Final answer
   x = 59,178.86