Finding the Fourth Proportional to 89,405.49, 123,379.11 and 48,569.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,405.49 : 123,379.11 = 48,569.30 : x
2. Step 2: Convert to fraction form
   89,405.49/123,379.11 = 48,569.30/x
3. Step 3: Cross multiply
   89,405.49x = 123,379.11 × 48,569.30
4. Step 4: Simplify right side
   89,405.49x = 5,992,437,007.32
5. Step 5: Solve for x
   x = 5,992,437,007.32/89,405.49
6. Step 6: Final answer
   x = 67,025.38