Finding the Fourth Proportional to 89,818.56, 123,947.89 and 49,536.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,818.56 : 123,947.89 = 49,536.05 : x
2. Step 2: Convert to fraction form
   89,818.56/123,947.89 = 49,536.05/x
3. Step 3: Cross multiply
   89,818.56x = 123,947.89 × 49,536.05
4. Step 4: Simplify right side
   89,818.56x = 6,139,888,132.85
5. Step 5: Solve for x
   x = 6,139,888,132.85/89,818.56
6. Step 6: Final answer
   x = 68,358.79