Finding the Fourth Proportional to 22,827.40, 31,498.35 and 12,756.26

Step by Step Solution

1. Step 1: Write the proportion equation
   22,827.40 : 31,498.35 = 12,756.26 : x
2. Step 2: Convert to fraction form
   22,827.40/31,498.35 = 12,756.26/x
3. Step 3: Cross multiply
   22,827.40x = 31,498.35 × 12,756.26
4. Step 4: Simplify right side
   22,827.40x = 401,801,142.17
5. Step 5: Solve for x
   x = 401,801,142.17/22,827.40
6. Step 6: Final answer
   x = 17,601.70