Finding the Fourth Proportional to 57,223.42, 85,859.82 and 30,946.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,223.42 : 85,859.82 = 30,946.72 : x
2. Step 2: Convert to fraction form
   57,223.42/85,859.82 = 30,946.72/x
3. Step 3: Cross multiply
   57,223.42x = 85,859.82 × 30,946.72
4. Step 4: Simplify right side
   57,223.42x = 2,657,079,808.79
5. Step 5: Solve for x
   x = 2,657,079,808.79/57,223.42
6. Step 6: Final answer
   x = 46,433.43