Finding the Fourth Proportional to 23,164.69, 31,966.93 and 13,092.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,164.69 : 31,966.93 = 13,092.78 : x
2. Step 2: Convert to fraction form
   23,164.69/31,966.93 = 13,092.78/x
3. Step 3: Cross multiply
   23,164.69x = 31,966.93 × 13,092.78
4. Step 4: Simplify right side
   23,164.69x = 418,536,141.56
5. Step 5: Solve for x
   x = 418,536,141.56/23,164.69
6. Step 6: Final answer
   x = 18,067.85