Finding the Fourth Proportional to 23,162.76, 31,966.02 and 13,091.00

Step by Step Solution

1. Step 1: Write the proportion equation
   23,162.76 : 31,966.02 = 13,091.00 : x
2. Step 2: Convert to fraction form
   23,162.76/31,966.02 = 13,091.00/x
3. Step 3: Cross multiply
   23,162.76x = 31,966.02 × 13,091.00
4. Step 4: Simplify right side
   23,162.76x = 418,467,007.99
5. Step 5: Solve for x
   x = 418,467,007.99/23,162.76
6. Step 6: Final answer
   x = 18,066.37