Finding the Fourth Proportional to 23,036, 31,789.68 and 13,604.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,036 : 31,789.68 = 13,604.72 : x
2. Step 2: Convert to fraction form
   23,036/31,789.68 = 13,604.72/x
3. Step 3: Cross multiply
   23,036x = 31,789.68 × 13,604.72
4. Step 4: Simplify right side
   23,036x = 432,489,695.29
5. Step 5: Solve for x
   x = 432,489,695.29/23,036
6. Step 6: Final answer
   x = 18,774.51