Finding the Fourth Proportional to 89,521.93, 123,540.31 and 49,238.43

Step by Step Solution

1. Step 1: Write the proportion equation
   89,521.93 : 123,540.31 = 49,238.43 : x
2. Step 2: Convert to fraction form
   89,521.93/123,540.31 = 49,238.43/x
3. Step 3: Cross multiply
   89,521.93x = 123,540.31 × 49,238.43
4. Step 4: Simplify right side
   89,521.93x = 6,082,930,906.11
5. Step 5: Solve for x
   x = 6,082,930,906.11/89,521.93
6. Step 6: Final answer
   x = 67,949.06