Finding the Fourth Proportional to 17,736.37, 26,604.38 and 5,256.43

Step by Step Solution

1. Step 1: Write the proportion equation
   17,736.37 : 26,604.38 = 5,256.43 : x
2. Step 2: Convert to fraction form
   17,736.37/26,604.38 = 5,256.43/x
3. Step 3: Cross multiply
   17,736.37x = 26,604.38 × 5,256.43
4. Step 4: Simplify right side
   17,736.37x = 139,844,007.79
5. Step 5: Solve for x
   x = 139,844,007.79/17,736.37
6. Step 6: Final answer
   x = 7,884.59