Finding the Fourth Proportional to 23,057.07, 34,530.16 and 13,166.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,057.07 : 34,530.16 = 13,166.37 : x
2. Step 2: Convert to fraction form
   23,057.07/34,530.16 = 13,166.37/x
3. Step 3: Cross multiply
   23,057.07x = 34,530.16 × 13,166.37
4. Step 4: Simplify right side
   23,057.07x = 454,636,862.72
5. Step 5: Solve for x
   x = 454,636,862.72/23,057.07
6. Step 6: Final answer
   x = 19,717.89