Finding the Fourth Proportional to 89,363.40, 123,322.34 and 49,078

Step by Step Solution

1. Step 1: Write the proportion equation
   89,363.40 : 123,322.34 = 49,078 : x
2. Step 2: Convert to fraction form
   89,363.40/123,322.34 = 49,078/x
3. Step 3: Cross multiply
   89,363.40x = 123,322.34 × 49,078
4. Step 4: Simplify right side
   89,363.40x = 6,052,413,802.52
5. Step 5: Solve for x
   x = 6,052,413,802.52/89,363.40
6. Step 6: Final answer
   x = 67,728.11