Finding the Fourth Proportional to 23,066.56, 31,831.94 and 13,988.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,066.56 : 31,831.94 = 13,988.88 : x
2. Step 2: Convert to fraction form
   23,066.56/31,831.94 = 13,988.88/x
3. Step 3: Cross multiply
   23,066.56x = 31,831.94 × 13,988.88
4. Step 4: Simplify right side
   23,066.56x = 445,293,188.83
5. Step 5: Solve for x
   x = 445,293,188.83/23,066.56
6. Step 6: Final answer
   x = 19,304.71