Finding the Fourth Proportional to 144,404.10, 216,458.46 and 55,622.79

Step by Step Solution

1. Step 1: Write the proportion equation
   144,404.10 : 216,458.46 = 55,622.79 : x
2. Step 2: Convert to fraction form
   144,404.10/216,458.46 = 55,622.79/x
3. Step 3: Cross multiply
   144,404.10x = 216,458.46 × 55,622.79
4. Step 4: Simplify right side
   144,404.10x = 12,040,023,464.30
5. Step 5: Solve for x
   x = 12,040,023,464.30/144,404.10
6. Step 6: Final answer
   x = 83,377.30