Finding the Fourth Proportional to 76,315.50, 105,321.85 and 42,334.93

Step by Step Solution

1. Step 1: Write the proportion equation
   76,315.50 : 105,321.85 = 42,334.93 : x
2. Step 2: Convert to fraction form
   76,315.50/105,321.85 = 42,334.93/x
3. Step 3: Cross multiply
   76,315.50x = 105,321.85 × 42,334.93
4. Step 4: Simplify right side
   76,315.50x = 4,458,793,147.22
5. Step 5: Solve for x
   x = 4,458,793,147.22/76,315.50
6. Step 6: Final answer
   x = 58,425.79