Finding the Fourth Proportional to 89,688.66, 123,772.22 and 49,404.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,688.66 : 123,772.22 = 49,404.12 : x
2. Step 2: Convert to fraction form
   89,688.66/123,772.22 = 49,404.12/x
3. Step 3: Cross multiply
   89,688.66x = 123,772.22 × 49,404.12
4. Step 4: Simplify right side
   89,688.66x = 6,114,857,609.55
5. Step 5: Solve for x
   x = 6,114,857,609.55/89,688.66
6. Step 6: Final answer
   x = 68,178.72