Finding the Fourth Proportional to 57,116.74, 85,581.47 and 40,446.83

Step by Step Solution

1. Step 1: Write the proportion equation
   57,116.74 : 85,581.47 = 40,446.83 : x
2. Step 2: Convert to fraction form
   57,116.74/85,581.47 = 40,446.83/x
3. Step 3: Cross multiply
   57,116.74x = 85,581.47 × 40,446.83
4. Step 4: Simplify right side
   57,116.74x = 3,461,499,483.31
5. Step 5: Solve for x
   x = 3,461,499,483.31/57,116.74
6. Step 6: Final answer
   x = 60,603.94