Finding the Fourth Proportional to 87,317.56, 120,488.52 and 49,068.28

Step by Step Solution

1. Step 1: Write the proportion equation
   87,317.56 : 120,488.52 = 49,068.28 : x
2. Step 2: Convert to fraction form
   87,317.56/120,488.52 = 49,068.28/x
3. Step 3: Cross multiply
   87,317.56x = 120,488.52 × 49,068.28
4. Step 4: Simplify right side
   87,317.56x = 5,912,164,436.15
5. Step 5: Solve for x
   x = 5,912,164,436.15/87,317.56
6. Step 6: Final answer
   x = 67,708.77