Finding the Fourth Proportional to 89,451.81, 123,444.77 and 49,169.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,451.81 : 123,444.77 = 49,169.30 : x
2. Step 2: Convert to fraction form
   89,451.81/123,444.77 = 49,169.30/x
3. Step 3: Cross multiply
   89,451.81x = 123,444.77 × 49,169.30
4. Step 4: Simplify right side
   89,451.81x = 6,069,692,066.49
5. Step 5: Solve for x
   x = 6,069,692,066.49/89,451.81
6. Step 6: Final answer
   x = 67,854.32