Finding the Fourth Proportional to 10,289.25, 14,184.59 and 7,311.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,289.25 : 14,184.59 = 7,311.89 : x
2. Step 2: Convert to fraction form
   10,289.25/14,184.59 = 7,311.89/x
3. Step 3: Cross multiply
   10,289.25x = 14,184.59 × 7,311.89
4. Step 4: Simplify right side
   10,289.25x = 103,716,160.68
5. Step 5: Solve for x
   x = 103,716,160.68/10,289.25
6. Step 6: Final answer
   x = 10,080.05