Finding the Fourth Proportional to 87,453, 131,207.16 and 31,291.86

Step by Step Solution

1. Step 1: Write the proportion equation
   87,453 : 131,207.16 = 31,291.86 : x
2. Step 2: Convert to fraction form
   87,453/131,207.16 = 31,291.86/x
3. Step 3: Cross multiply
   87,453x = 131,207.16 × 31,291.86
4. Step 4: Simplify right side
   87,453x = 4,105,716,081.72
5. Step 5: Solve for x
   x = 4,105,716,081.72/87,453
6. Step 6: Final answer
   x = 46,947.69