Finding the Fourth Proportional to 89,491.77, 123,501.83 and 49,208.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,491.77 : 123,501.83 = 49,208.60 : x
2. Step 2: Convert to fraction form
   89,491.77/123,501.83 = 49,208.60/x
3. Step 3: Cross multiply
   89,491.77x = 123,501.83 × 49,208.60
4. Step 4: Simplify right side
   89,491.77x = 6,077,352,214.45
5. Step 5: Solve for x
   x = 6,077,352,214.45/89,491.77
6. Step 6: Final answer
   x = 67,909.62