Finding the Fourth Proportional to 9,697.96, 13,379.88 and 5,920.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,697.96 : 13,379.88 = 5,920.12 : x
2. Step 2: Convert to fraction form
   9,697.96/13,379.88 = 5,920.12/x
3. Step 3: Cross multiply
   9,697.96x = 13,379.88 × 5,920.12
4. Step 4: Simplify right side
   9,697.96x = 79,210,495.19
5. Step 5: Solve for x
   x = 79,210,495.19/9,697.96
6. Step 6: Final answer
   x = 8,167.75