Finding the Fourth Proportional to 9,749.69, 13,454.68 and 5,920.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,749.69 : 13,454.68 = 5,920.23 : x
2. Step 2: Convert to fraction form
   9,749.69/13,454.68 = 5,920.23/x
3. Step 3: Cross multiply
   9,749.69x = 13,454.68 × 5,920.23
4. Step 4: Simplify right side
   9,749.69x = 79,654,785.38
5. Step 5: Solve for x
   x = 79,654,785.38/9,749.69
6. Step 6: Final answer
   x = 8,169.99