Finding the Fourth Proportional to 23,088.42, 31,860.81 and 13,016.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,088.42 : 31,860.81 = 13,016.88 : x
2. Step 2: Convert to fraction form
   23,088.42/31,860.81 = 13,016.88/x
3. Step 3: Cross multiply
   23,088.42x = 31,860.81 × 13,016.88
4. Step 4: Simplify right side
   23,088.42x = 414,728,340.47
5. Step 5: Solve for x
   x = 414,728,340.47/23,088.42
6. Step 6: Final answer
   x = 17,962.61