Finding the Fourth Proportional to 162,005.39, 223,556.96 and 89,408.93

Step by Step Solution

1. Step 1: Write the proportion equation
   162,005.39 : 223,556.96 = 89,408.93 : x
2. Step 2: Convert to fraction form
   162,005.39/223,556.96 = 89,408.93/x
3. Step 3: Cross multiply
   162,005.39x = 223,556.96 × 89,408.93
4. Step 4: Simplify right side
   162,005.39x = 19,987,987,022.82
5. Step 5: Solve for x
   x = 19,987,987,022.82/162,005.39
6. Step 6: Final answer
   x = 123,378.53