Finding the Fourth Proportional to 23,088.96, 31,860.87 and 13,019.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,088.96 : 31,860.87 = 13,019.88 : x
2. Step 2: Convert to fraction form
   23,088.96/31,860.87 = 13,019.88/x
3. Step 3: Cross multiply
   23,088.96x = 31,860.87 × 13,019.88
4. Step 4: Simplify right side
   23,088.96x = 414,824,704.10
5. Step 5: Solve for x
   x = 414,824,704.10/23,088.96
6. Step 6: Final answer
   x = 17,966.37