Finding the Fourth Proportional to 17,166.81, 23,688.24 and 9,612.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,166.81 : 23,688.24 = 9,612.09 : x
2. Step 2: Convert to fraction form
   17,166.81/23,688.24 = 9,612.09/x
3. Step 3: Cross multiply
   17,166.81x = 23,688.24 × 9,612.09
4. Step 4: Simplify right side
   17,166.81x = 227,693,494.82
5. Step 5: Solve for x
   x = 227,693,494.82/17,166.81
6. Step 6: Final answer
   x = 13,263.59