Finding the Fourth Proportional to 13,541.57, 18,687.17 and 7,573.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,541.57 : 18,687.17 = 7,573.18 : x
2. Step 2: Convert to fraction form
   13,541.57/18,687.17 = 7,573.18/x
3. Step 3: Cross multiply
   13,541.57x = 18,687.17 × 7,573.18
4. Step 4: Simplify right side
   13,541.57x = 141,521,302.10
5. Step 5: Solve for x
   x = 141,521,302.10/13,541.57
6. Step 6: Final answer
   x = 10,450.88