Finding the Fourth Proportional to 9,559.96, 13,192.90 and 5,311.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.96 : 13,192.90 = 5,311.30 : x
2. Step 2: Convert to fraction form
   9,559.96/13,192.90 = 5,311.30/x
3. Step 3: Cross multiply
   9,559.96x = 13,192.90 × 5,311.30
4. Step 4: Simplify right side
   9,559.96x = 70,071,383.81
5. Step 5: Solve for x
   x = 70,071,383.81/9,559.96
6. Step 6: Final answer
   x = 7,329.67