Finding the Fourth Proportional to 225,404.27, 338,103.59 and 90,528.06

Step by Step Solution

1. Step 1: Write the proportion equation
   225,404.27 : 338,103.59 = 90,528.06 : x
2. Step 2: Convert to fraction form
   225,404.27/338,103.59 = 90,528.06/x
3. Step 3: Cross multiply
   225,404.27x = 338,103.59 × 90,528.06
4. Step 4: Simplify right side
   225,404.27x = 30,607,862,896.98
5. Step 5: Solve for x
   x = 30,607,862,896.98/225,404.27
6. Step 6: Final answer
   x = 135,790.96