Finding the Fourth Proportional to 23,066.13, 31,831.35 and 12,994.69

Step by Step Solution

1. Step 1: Write the proportion equation
   23,066.13 : 31,831.35 = 12,994.69 : x
2. Step 2: Convert to fraction form
   23,066.13/31,831.35 = 12,994.69/x
3. Step 3: Cross multiply
   23,066.13x = 31,831.35 × 12,994.69
4. Step 4: Simplify right side
   23,066.13x = 413,638,301.40
5. Step 5: Solve for x
   x = 413,638,301.40/23,066.13
6. Step 6: Final answer
   x = 17,932.72