Finding the Fourth Proportional to 89,424.12, 123,405.24 and 49,137.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89,424.12 : 123,405.24 = 49,137.82 : x
2. Step 2: Convert to fraction form
   89,424.12/123,405.24 = 49,137.82/x
3. Step 3: Cross multiply
   89,424.12x = 123,405.24 × 49,137.82
4. Step 4: Simplify right side
   89,424.12x = 6,063,864,470.18
5. Step 5: Solve for x
   x = 6,063,864,470.18/89,424.12
6. Step 6: Final answer
   x = 67,810.17