Finding the Fourth Proportional to 87,717, 121,049.27 and 49,476.42

Step by Step Solution

1. Step 1: Write the proportion equation
   87,717 : 121,049.27 = 49,476.42 : x
2. Step 2: Convert to fraction form
   87,717/121,049.27 = 49,476.42/x
3. Step 3: Cross multiply
   87,717x = 121,049.27 × 49,476.42
4. Step 4: Simplify right side
   87,717x = 5,989,084,275.83
5. Step 5: Solve for x
   x = 5,989,084,275.83/87,717
6. Step 6: Final answer
   x = 68,277.35