Finding the Fourth Proportional to 22,828.08, 31,502.69 and 12,756.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,828.08 : 31,502.69 = 12,756.53 : x
2. Step 2: Convert to fraction form
   22,828.08/31,502.69 = 12,756.53/x
3. Step 3: Cross multiply
   22,828.08x = 31,502.69 × 12,756.53
4. Step 4: Simplify right side
   22,828.08x = 401,864,946.28
5. Step 5: Solve for x
   x = 401,864,946.28/22,828.08
6. Step 6: Final answer
   x = 17,603.97