Finding the Fourth Proportional to 82,867.68, 114,357.60 and 45,142.20

Step by Step Solution

1. Step 1: Write the proportion equation
   82,867.68 : 114,357.60 = 45,142.20 : x
2. Step 2: Convert to fraction form
   82,867.68/114,357.60 = 45,142.20/x
3. Step 3: Cross multiply
   82,867.68x = 114,357.60 × 45,142.20
4. Step 4: Simplify right side
   82,867.68x = 5,162,353,650.72
5. Step 5: Solve for x
   x = 5,162,353,650.72/82,867.68
6. Step 6: Final answer
   x = 62,296.35