Finding the Fourth Proportional to 76,793.93, 105,962.78 and 42,794.96

Step by Step Solution

1. Step 1: Write the proportion equation
   76,793.93 : 105,962.78 = 42,794.96 : x
2. Step 2: Convert to fraction form
   76,793.93/105,962.78 = 42,794.96/x
3. Step 3: Cross multiply
   76,793.93x = 105,962.78 × 42,794.96
4. Step 4: Simplify right side
   76,793.93x = 4,534,672,717.61
5. Step 5: Solve for x
   x = 4,534,672,717.61/76,793.93
6. Step 6: Final answer
   x = 59,049.88