Finding the Fourth Proportional to 89,920.27, 124,089.98 and 49,634.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,920.27 : 124,089.98 = 49,634.05 : x
2. Step 2: Convert to fraction form
   89,920.27/124,089.98 = 49,634.05/x
3. Step 3: Cross multiply
   89,920.27x = 124,089.98 × 49,634.05
4. Step 4: Simplify right side
   89,920.27x = 6,159,087,651.37
5. Step 5: Solve for x
   x = 6,159,087,651.37/89,920.27
6. Step 6: Final answer
   x = 68,494.99