Finding the Fourth Proportional to 89,401.77, 123,377.63 and 49,116.92

Step by Step Solution

1. Step 1: Write the proportion equation
   89,401.77 : 123,377.63 = 49,116.92 : x
2. Step 2: Convert to fraction form
   89,401.77/123,377.63 = 49,116.92/x
3. Step 3: Cross multiply
   89,401.77x = 123,377.63 × 49,116.92
4. Step 4: Simplify right side
   89,401.77x = 6,059,928,320.03
5. Step 5: Solve for x
   x = 6,059,928,320.03/89,401.77
6. Step 6: Final answer
   x = 67,783.09