Finding the Fourth Proportional to 144,462.98, 199,364.94 and 89,284.56

Step by Step Solution

1. Step 1: Write the proportion equation
   144,462.98 : 199,364.94 = 89,284.56 : x
2. Step 2: Convert to fraction form
   144,462.98/199,364.94 = 89,284.56/x
3. Step 3: Cross multiply
   144,462.98x = 199,364.94 × 89,284.56
4. Step 4: Simplify right side
   144,462.98x = 17,800,210,947.33
5. Step 5: Solve for x
   x = 17,800,210,947.33/144,462.98
6. Step 6: Final answer
   x = 123,216.42