Finding the Fourth Proportional to 9,142.50, 13,732.18 and 5,451.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.50 : 13,732.18 = 5,451.96 : x
2. Step 2: Convert to fraction form
   9,142.50/13,732.18 = 5,451.96/x
3. Step 3: Cross multiply
   9,142.50x = 13,732.18 × 5,451.96
4. Step 4: Simplify right side
   9,142.50x = 74,867,296.07
5. Step 5: Solve for x
   x = 74,867,296.07/9,142.50
6. Step 6: Final answer
   x = 8,188.93