Finding the Fourth Proportional to 62,216.38, 85,831.30 and 42,065.87

Step by Step Solution

1. Step 1: Write the proportion equation
   62,216.38 : 85,831.30 = 42,065.87 : x
2. Step 2: Convert to fraction form
   62,216.38/85,831.30 = 42,065.87/x
3. Step 3: Cross multiply
   62,216.38x = 85,831.30 × 42,065.87
4. Step 4: Simplify right side
   62,216.38x = 3,610,568,417.14
5. Step 5: Solve for x
   x = 3,610,568,417.14/62,216.38
6. Step 6: Final answer
   x = 58,032.44