Finding the Fourth Proportional to 87,155.70, 120,271.23 and 49,437.06

Step by Step Solution

1. Step 1: Write the proportion equation
   87,155.70 : 120,271.23 = 49,437.06 : x
2. Step 2: Convert to fraction form
   87,155.70/120,271.23 = 49,437.06/x
3. Step 3: Cross multiply
   87,155.70x = 120,271.23 × 49,437.06
4. Step 4: Simplify right side
   87,155.70x = 5,945,856,013.78
5. Step 5: Solve for x
   x = 5,945,856,013.78/87,155.70
6. Step 6: Final answer
   x = 68,221.08