Finding the Fourth Proportional to 23,036.01, 31,791.60 and 12,964.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,036.01 : 31,791.60 = 12,964.88 : x
2. Step 2: Convert to fraction form
   23,036.01/31,791.60 = 12,964.88/x
3. Step 3: Cross multiply
   23,036.01x = 31,791.60 × 12,964.88
4. Step 4: Simplify right side
   23,036.01x = 412,174,120.05
5. Step 5: Solve for x
   x = 412,174,120.05/23,036.01
6. Step 6: Final answer
   x = 17,892.60