Finding the Fourth Proportional to 87,817.48, 131,620.14 and 42,771.33

Step by Step Solution

1. Step 1: Write the proportion equation
   87,817.48 : 131,620.14 = 42,771.33 : x
2. Step 2: Convert to fraction form
   87,817.48/131,620.14 = 42,771.33/x
3. Step 3: Cross multiply
   87,817.48x = 131,620.14 × 42,771.33
4. Step 4: Simplify right side
   87,817.48x = 5,629,568,442.59
5. Step 5: Solve for x
   x = 5,629,568,442.59/87,817.48
6. Step 6: Final answer
   x = 64,105.33