Finding the Fourth Proportional to 68,329.98, 94,339.20 and 42,871.20

Step by Step Solution

1. Step 1: Write the proportion equation
   68,329.98 : 94,339.20 = 42,871.20 : x
2. Step 2: Convert to fraction form
   68,329.98/94,339.20 = 42,871.20/x
3. Step 3: Cross multiply
   68,329.98x = 94,339.20 × 42,871.20
4. Step 4: Simplify right side
   68,329.98x = 4,044,434,711.04
5. Step 5: Solve for x
   x = 4,044,434,711.04/68,329.98
6. Step 6: Final answer
   x = 59,189.75