Finding the Fourth Proportional to 17,604.72, 26,274.83 and 15,222.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,604.72 : 26,274.83 = 15,222.31 : x
2. Step 2: Convert to fraction form
   17,604.72/26,274.83 = 15,222.31/x
3. Step 3: Cross multiply
   17,604.72x = 26,274.83 × 15,222.31
4. Step 4: Simplify right side
   17,604.72x = 399,963,607.46
5. Step 5: Solve for x
   x = 399,963,607.46/17,604.72
6. Step 6: Final answer
   x = 22,719.11