Finding the Fourth Proportional to 89,729.61, 123,832.29 and 49,443.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,729.61 : 123,832.29 = 49,443.31 : x
2. Step 2: Convert to fraction form
   89,729.61/123,832.29 = 49,443.31/x
3. Step 3: Cross multiply
   89,729.61x = 123,832.29 × 49,443.31
4. Step 4: Simplify right side
   89,729.61x = 6,122,678,642.68
5. Step 5: Solve for x
   x = 6,122,678,642.68/89,729.61
6. Step 6: Final answer
   x = 68,234.77