Finding the Fourth Proportional to 57,329.30, 85,821.15 and 50,417.30

Step by Step Solution

1. Step 1: Write the proportion equation
   57,329.30 : 85,821.15 = 50,417.30 : x
2. Step 2: Convert to fraction form
   57,329.30/85,821.15 = 50,417.30/x
3. Step 3: Cross multiply
   57,329.30x = 85,821.15 × 50,417.30
4. Step 4: Simplify right side
   57,329.30x = 4,326,870,665.90
5. Step 5: Solve for x
   x = 4,326,870,665.90/57,329.30
6. Step 6: Final answer
   x = 75,473.98