Finding the Fourth Proportional to 22,972.43, 31,700.00 and 12,900.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,972.43 : 31,700.00 = 12,900.08 : x
2. Step 2: Convert to fraction form
   22,972.43/31,700.00 = 12,900.08/x
3. Step 3: Cross multiply
   22,972.43x = 31,700.00 × 12,900.08
4. Step 4: Simplify right side
   22,972.43x = 408,932,313.00
5. Step 5: Solve for x
   x = 408,932,313.00/22,972.43
6. Step 6: Final answer
   x = 17,801.01