Finding the Fourth Proportional to 56,868.57, 85,233.68 and 40,233.40

Step by Step Solution

1. Step 1: Write the proportion equation
   56,868.57 : 85,233.68 = 40,233.40 : x
2. Step 2: Convert to fraction form
   56,868.57/85,233.68 = 40,233.40/x
3. Step 3: Cross multiply
   56,868.57x = 85,233.68 × 40,233.40
4. Step 4: Simplify right side
   56,868.57x = 3,429,240,364.38
5. Step 5: Solve for x
   x = 3,429,240,364.38/56,868.57
6. Step 6: Final answer
   x = 60,301.15