Finding the Fourth Proportional to 78,112.43, 107,794.98 and 42,302.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,112.43 : 107,794.98 = 42,302.33 : x
2. Step 2: Convert to fraction form
   78,112.43/107,794.98 = 42,302.33/x
3. Step 3: Cross multiply
   78,112.43x = 107,794.98 × 42,302.33
4. Step 4: Simplify right side
   78,112.43x = 4,559,978,816.30
5. Step 5: Solve for x
   x = 4,559,978,816.30/78,112.43
6. Step 6: Final answer
   x = 58,377.12