Finding the Fourth Proportional to 89,469.87, 123,468.81 and 49,186.21

Step by Step Solution

1. Step 1: Write the proportion equation
   89,469.87 : 123,468.81 = 49,186.21 : x
2. Step 2: Convert to fraction form
   89,469.87/123,468.81 = 49,186.21/x
3. Step 3: Cross multiply
   89,469.87x = 123,468.81 × 49,186.21
4. Step 4: Simplify right side
   89,469.87x = 6,072,962,817.11
5. Step 5: Solve for x
   x = 6,072,962,817.11/89,469.87
6. Step 6: Final answer
   x = 67,877.18