Finding the Fourth Proportional to 11,704.49, 17,541.20 and 5,123.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,704.49 : 17,541.20 = 5,123.51 : x
2. Step 2: Convert to fraction form
   11,704.49/17,541.20 = 5,123.51/x
3. Step 3: Cross multiply
   11,704.49x = 17,541.20 × 5,123.51
4. Step 4: Simplify right side
   11,704.49x = 89,872,400.29
5. Step 5: Solve for x
   x = 89,872,400.29/11,704.49
6. Step 6: Final answer
   x = 7,678.46