Finding the Fourth Proportional to 22,471.10, 31,011.52 and 12,914.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,471.10 : 31,011.52 = 12,914.06 : x
2. Step 2: Convert to fraction form
   22,471.10/31,011.52 = 12,914.06/x
3. Step 3: Cross multiply
   22,471.10x = 31,011.52 × 12,914.06
4. Step 4: Simplify right side
   22,471.10x = 400,484,629.97
5. Step 5: Solve for x
   x = 400,484,629.97/22,471.10
6. Step 6: Final answer
   x = 17,822.21