Finding the Fourth Proportional to 22,827.72, 31,502.30 and 12,756.18

Step by Step Solution

1. Step 1: Write the proportion equation
   22,827.72 : 31,502.30 = 12,756.18 : x
2. Step 2: Convert to fraction form
   22,827.72/31,502.30 = 12,756.18/x
3. Step 3: Cross multiply
   22,827.72x = 31,502.30 × 12,756.18
4. Step 4: Simplify right side
   22,827.72x = 401,848,945.43
5. Step 5: Solve for x
   x = 401,848,945.43/22,827.72
6. Step 6: Final answer
   x = 17,603.55