Finding the Fourth Proportional to 89,441.15, 123,422.81 and 49,154.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,441.15 : 123,422.81 = 49,154.05 : x
2. Step 2: Convert to fraction form
   89,441.15/123,422.81 = 49,154.05/x
3. Step 3: Cross multiply
   89,441.15x = 123,422.81 × 49,154.05
4. Step 4: Simplify right side
   89,441.15x = 6,066,730,973.88
5. Step 5: Solve for x
   x = 6,066,730,973.88/89,441.15
6. Step 6: Final answer
   x = 67,829.30