Finding the Fourth Proportional to 13,541.50, 18,689.43 and 7,951.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,541.50 : 18,689.43 = 7,951.42 : x
2. Step 2: Convert to fraction form
   13,541.50/18,689.43 = 7,951.42/x
3. Step 3: Cross multiply
   13,541.50x = 18,689.43 × 7,951.42
4. Step 4: Simplify right side
   13,541.50x = 148,607,507.49
5. Step 5: Solve for x
   x = 148,607,507.49/13,541.50
6. Step 6: Final answer
   x = 10,974.23