Finding the Fourth Proportional to 89,478.90, 123,479.17 and 49,192.27

Step by Step Solution

1. Step 1: Write the proportion equation
   89,478.90 : 123,479.17 = 49,192.27 : x
2. Step 2: Convert to fraction form
   89,478.90/123,479.17 = 49,192.27/x
3. Step 3: Cross multiply
   89,478.90x = 123,479.17 × 49,192.27
4. Step 4: Simplify right side
   89,478.90x = 6,074,220,238.34
5. Step 5: Solve for x
   x = 6,074,220,238.34/89,478.90
6. Step 6: Final answer
   x = 67,884.39