Finding the Fourth Proportional to 113,438.48, 170,144.72 and 30,338.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,438.48 : 170,144.72 = 30,338.96 : x
2. Step 2: Convert to fraction form
   113,438.48/170,144.72 = 30,338.96/x
3. Step 3: Cross multiply
   113,438.48x = 170,144.72 × 30,338.96
4. Step 4: Simplify right side
   113,438.48x = 5,162,013,854.29
5. Step 5: Solve for x
   x = 5,162,013,854.29/113,438.48
6. Step 6: Final answer
   x = 45,504.96