Finding the Fourth Proportional to 23,089.88, 31,864.04 and 13,153.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,089.88 : 31,864.04 = 13,153.88 : x
2. Step 2: Convert to fraction form
   23,089.88/31,864.04 = 13,153.88/x
3. Step 3: Cross multiply
   23,089.88x = 31,864.04 × 13,153.88
4. Step 4: Simplify right side
   23,089.88x = 419,135,533.39
5. Step 5: Solve for x
   x = 419,135,533.39/23,089.88
6. Step 6: Final answer
   x = 18,152.35