Finding the Fourth Proportional to 11,341.57, 15,666.33 and 9,459.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,341.57 : 15,666.33 = 9,459.31 : x
2. Step 2: Convert to fraction form
   11,341.57/15,666.33 = 9,459.31/x
3. Step 3: Cross multiply
   11,341.57x = 15,666.33 × 9,459.31
4. Step 4: Simplify right side
   11,341.57x = 148,192,672.03
5. Step 5: Solve for x
   x = 148,192,672.03/11,341.57
6. Step 6: Final answer
   x = 13,066.33