Finding the Fourth Proportional to 89,174.68, 123,060.78 and 48,890.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,174.68 : 123,060.78 = 48,890.12 : x
2. Step 2: Convert to fraction form
   89,174.68/123,060.78 = 48,890.12/x
3. Step 3: Cross multiply
   89,174.68x = 123,060.78 × 48,890.12
4. Step 4: Simplify right side
   89,174.68x = 6,016,456,301.49
5. Step 5: Solve for x
   x = 6,016,456,301.49/89,174.68
6. Step 6: Final answer
   x = 67,468.21