Finding the Fourth Proportional to 22,507.92, 31,055.94 and 12,947.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,507.92 : 31,055.94 = 12,947.22 : x
2. Step 2: Convert to fraction form
   22,507.92/31,055.94 = 12,947.22/x
3. Step 3: Cross multiply
   22,507.92x = 31,055.94 × 12,947.22
4. Step 4: Simplify right side
   22,507.92x = 402,088,087.49
5. Step 5: Solve for x
   x = 402,088,087.49/22,507.92
6. Step 6: Final answer
   x = 17,864.29