Finding the Fourth Proportional to 9,555.23, 13,186.04 and 5,306.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,555.23 : 13,186.04 = 5,306.31 : x
2. Step 2: Convert to fraction form
   9,555.23/13,186.04 = 5,306.31/x
3. Step 3: Cross multiply
   9,555.23x = 13,186.04 × 5,306.31
4. Step 4: Simplify right side
   9,555.23x = 69,969,215.91
5. Step 5: Solve for x
   x = 69,969,215.91/9,555.23
6. Step 6: Final answer
   x = 7,322.61