Finding the Fourth Proportional to 87,440.50, 120,667.89 and 49,714.75

Step by Step Solution

1. Step 1: Write the proportion equation
   87,440.50 : 120,667.89 = 49,714.75 : x
2. Step 2: Convert to fraction form
   87,440.50/120,667.89 = 49,714.75/x
3. Step 3: Cross multiply
   87,440.50x = 120,667.89 × 49,714.75
4. Step 4: Simplify right side
   87,440.50x = 5,998,973,984.38
5. Step 5: Solve for x
   x = 5,998,973,984.38/87,440.50
6. Step 6: Final answer
   x = 68,606.36