Finding the Fourth Proportional to 89,468.78, 123,469.68 and 49,185.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,468.78 : 123,469.68 = 49,185.62 : x
2. Step 2: Convert to fraction form
   89,468.78/123,469.68 = 49,185.62/x
3. Step 3: Cross multiply
   89,468.78x = 123,469.68 × 49,185.62
4. Step 4: Simplify right side
   89,468.78x = 6,072,932,762.00
5. Step 5: Solve for x
   x = 6,072,932,762.00/89,468.78
6. Step 6: Final answer
   x = 67,877.67