Finding the Fourth Proportional to 87,382.55, 120,586.77 and 49,142.09

Step by Step Solution

1. Step 1: Write the proportion equation
   87,382.55 : 120,586.77 = 49,142.09 : x
2. Step 2: Convert to fraction form
   87,382.55/120,586.77 = 49,142.09/x
3. Step 3: Cross multiply
   87,382.55x = 120,586.77 × 49,142.09
4. Step 4: Simplify right side
   87,382.55x = 5,925,885,904.15
5. Step 5: Solve for x
   x = 5,925,885,904.15/87,382.55
6. Step 6: Final answer
   x = 67,815.44