Finding the Fourth Proportional to 78,144.24, 107,839.15 and 42,333.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,144.24 : 107,839.15 = 42,333.94 : x
2. Step 2: Convert to fraction form
   78,144.24/107,839.15 = 42,333.94/x
3. Step 3: Cross multiply
   78,144.24x = 107,839.15 × 42,333.94
4. Step 4: Simplify right side
   78,144.24x = 4,565,256,134.72
5. Step 5: Solve for x
   x = 4,565,256,134.72/78,144.24
6. Step 6: Final answer
   x = 58,420.89