Finding the Fourth Proportional to 225,111.67, 337,667.32 and 90,236.68

Step by Step Solution

1. Step 1: Write the proportion equation
   225,111.67 : 337,667.32 = 90,236.68 : x
2. Step 2: Convert to fraction form
   225,111.67/337,667.32 = 90,236.68/x
3. Step 3: Cross multiply
   225,111.67x = 337,667.32 × 90,236.68
4. Step 4: Simplify right side
   225,111.67x = 30,469,977,901.30
5. Step 5: Solve for x
   x = 30,469,977,901.30/225,111.67
6. Step 6: Final answer
   x = 135,354.95