Finding the Fourth Proportional to 23,109.57, 31,891.65 and 13,036.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,109.57 : 31,891.65 = 13,036.03 : x
2. Step 2: Convert to fraction form
   23,109.57/31,891.65 = 13,036.03/x
3. Step 3: Cross multiply
   23,109.57x = 31,891.65 × 13,036.03
4. Step 4: Simplify right side
   23,109.57x = 415,740,506.15
5. Step 5: Solve for x
   x = 415,740,506.15/23,109.57
6. Step 6: Final answer
   x = 17,989.97