Finding the Fourth Proportional to 76,315.89, 105,326.69 and 42,331.94

Step by Step Solution

1. Step 1: Write the proportion equation
   76,315.89 : 105,326.69 = 42,331.94 : x
2. Step 2: Convert to fraction form
   76,315.89/105,326.69 = 42,331.94/x
3. Step 3: Cross multiply
   76,315.89x = 105,326.69 × 42,331.94
4. Step 4: Simplify right side
   76,315.89x = 4,458,682,383.19
5. Step 5: Solve for x
   x = 4,458,682,383.19/76,315.89
6. Step 6: Final answer
   x = 58,424.04