Finding the Fourth Proportional to 87,275.42, 120,435.51 and 49,036.49

Step by Step Solution

1. Step 1: Write the proportion equation
   87,275.42 : 120,435.51 = 49,036.49 : x
2. Step 2: Convert to fraction form
   87,275.42/120,435.51 = 49,036.49/x
3. Step 3: Cross multiply
   87,275.42x = 120,435.51 × 49,036.49
4. Step 4: Simplify right side
   87,275.42x = 5,905,734,439.27
5. Step 5: Solve for x
   x = 5,905,734,439.27/87,275.42
6. Step 6: Final answer
   x = 67,667.78