Finding the Fourth Proportional to 87,417, 120,635.46 and 49,693.68

Step by Step Solution

1. Step 1: Write the proportion equation
   87,417 : 120,635.46 = 49,693.68 : x
2. Step 2: Convert to fraction form
   87,417/120,635.46 = 49,693.68/x
3. Step 3: Cross multiply
   87,417x = 120,635.46 × 49,693.68
4. Step 4: Simplify right side
   87,417x = 5,994,819,945.89
5. Step 5: Solve for x
   x = 5,994,819,945.89/87,417
6. Step 6: Final answer
   x = 68,577.28