Finding the Fourth Proportional to 225,498.54, 338,263.59 and 90,562.62

Step by Step Solution

1. Step 1: Write the proportion equation
   225,498.54 : 338,263.59 = 90,562.62 : x
2. Step 2: Convert to fraction form
   225,498.54/338,263.59 = 90,562.62/x
3. Step 3: Cross multiply
   225,498.54x = 338,263.59 × 90,562.62
4. Step 4: Simplify right side
   225,498.54x = 30,634,036,961.01
5. Step 5: Solve for x
   x = 30,634,036,961.01/225,498.54
6. Step 6: Final answer
   x = 135,850.27