Finding the Fourth Proportional to 76,326.71, 105,331.59 and 42,338.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,326.71 : 105,331.59 = 42,338.54 : x
2. Step 2: Convert to fraction form
   76,326.71/105,331.59 = 42,338.54/x
3. Step 3: Cross multiply
   76,326.71x = 105,331.59 × 42,338.54
4. Step 4: Simplify right side
   76,326.71x = 4,459,585,736.48
5. Step 5: Solve for x
   x = 4,459,585,736.48/76,326.71
6. Step 6: Final answer
   x = 58,427.59