Finding the Fourth Proportional to 23,173.51, 31,977.50 and 13,101.43

Step by Step Solution

1. Step 1: Write the proportion equation
   23,173.51 : 31,977.50 = 13,101.43 : x
2. Step 2: Convert to fraction form
   23,173.51/31,977.50 = 13,101.43/x
3. Step 3: Cross multiply
   23,173.51x = 31,977.50 × 13,101.43
4. Step 4: Simplify right side
   23,173.51x = 418,950,912.32
5. Step 5: Solve for x
   x = 418,950,912.32/23,173.51
6. Step 6: Final answer
   x = 18,078.87