Finding the Fourth Proportional to 87,306.27, 120,483.50 and 49,580.79

Step by Step Solution

1. Step 1: Write the proportion equation
   87,306.27 : 120,483.50 = 49,580.79 : x
2. Step 2: Convert to fraction form
   87,306.27/120,483.50 = 49,580.79/x
3. Step 3: Cross multiply
   87,306.27x = 120,483.50 × 49,580.79
4. Step 4: Simplify right side
   87,306.27x = 5,973,667,111.97
5. Step 5: Solve for x
   x = 5,973,667,111.97/87,306.27
6. Step 6: Final answer
   x = 68,421.97