Finding the Fourth Proportional to 57,377.10, 85,679.30 and 46,868.10

Step by Step Solution

1. Step 1: Write the proportion equation
   57,377.10 : 85,679.30 = 46,868.10 : x
2. Step 2: Convert to fraction form
   57,377.10/85,679.30 = 46,868.10/x
3. Step 3: Cross multiply
   57,377.10x = 85,679.30 × 46,868.10
4. Step 4: Simplify right side
   57,377.10x = 4,015,626,117.50
5. Step 5: Solve for x
   x = 4,015,626,117.50/57,377.10
6. Step 6: Final answer
   x = 69,986.56