Finding the Fourth Proportional to 23,019.33, 31,767 and 13,587.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,019.33 : 31,767 = 13,587.89 : x
2. Step 2: Convert to fraction form
   23,019.33/31,767 = 13,587.89/x
3. Step 3: Cross multiply
   23,019.33x = 31,767 × 13,587.89
4. Step 4: Simplify right side
   23,019.33x = 431,646,501.63
5. Step 5: Solve for x
   x = 431,646,501.63/23,019.33
6. Step 6: Final answer
   x = 18,751.48