Finding the Fourth Proportional to 62,831.82, 86,627.07 and 51,459.42

Step by Step Solution

1. Step 1: Write the proportion equation
   62,831.82 : 86,627.07 = 51,459.42 : x
2. Step 2: Convert to fraction form
   62,831.82/86,627.07 = 51,459.42/x
3. Step 3: Cross multiply
   62,831.82x = 86,627.07 × 51,459.42
4. Step 4: Simplify right side
   62,831.82x = 4,457,778,778.50
5. Step 5: Solve for x
   x = 4,457,778,778.50/62,831.82
6. Step 6: Final answer
   x = 70,947.79