Finding the Fourth Proportional to 23,146.90, 31,942.74 and 13,075.36

Step by Step Solution

1. Step 1: Write the proportion equation
   23,146.90 : 31,942.74 = 13,075.36 : x
2. Step 2: Convert to fraction form
   23,146.90/31,942.74 = 13,075.36/x
3. Step 3: Cross multiply
   23,146.90x = 31,942.74 × 13,075.36
4. Step 4: Simplify right side
   23,146.90x = 417,662,824.89
5. Step 5: Solve for x
   x = 417,662,824.89/23,146.90
6. Step 6: Final answer
   x = 18,044.01