Finding the Fourth Proportional to 87,385.34, 120,590.61 and 49,144.87

Step by Step Solution

1. Step 1: Write the proportion equation
   87,385.34 : 120,590.61 = 49,144.87 : x
2. Step 2: Convert to fraction form
   87,385.34/120,590.61 = 49,144.87/x
3. Step 3: Cross multiply
   87,385.34x = 120,590.61 × 49,144.87
4. Step 4: Simplify right side
   87,385.34x = 5,926,409,974.53
5. Step 5: Solve for x
   x = 5,926,409,974.53/87,385.34
6. Step 6: Final answer
   x = 67,819.27