Finding the Fourth Proportional to 23,147.89, 31,943.49 and 13,077.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,147.89 : 31,943.49 = 13,077.37 : x
2. Step 2: Convert to fraction form
   23,147.89/31,943.49 = 13,077.37/x
3. Step 3: Cross multiply
   23,147.89x = 31,943.49 × 13,077.37
4. Step 4: Simplify right side
   23,147.89x = 417,736,837.82
5. Step 5: Solve for x
   x = 417,736,837.82/23,147.89
6. Step 6: Final answer
   x = 18,046.43