Finding the Fourth Proportional to 89,835.48, 123,978.42 and 49,549.08

Step by Step Solution

1. Step 1: Write the proportion equation
   89,835.48 : 123,978.42 = 49,549.08 : x
2. Step 2: Convert to fraction form
   89,835.48/123,978.42 = 49,549.08/x
3. Step 3: Cross multiply
   89,835.48x = 123,978.42 × 49,549.08
4. Step 4: Simplify right side
   89,835.48x = 6,143,016,650.85
5. Step 5: Solve for x
   x = 6,143,016,650.85/89,835.48
6. Step 6: Final answer
   x = 68,380.74