Finding the Fourth Proportional to 10,854.42, 14,973.69 and 7,311.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,854.42 : 14,973.69 = 7,311.48 : x
2. Step 2: Convert to fraction form
   10,854.42/14,973.69 = 7,311.48/x
3. Step 3: Cross multiply
   10,854.42x = 14,973.69 × 7,311.48
4. Step 4: Simplify right side
   10,854.42x = 109,479,834.96
5. Step 5: Solve for x
   x = 109,479,834.96/10,854.42
6. Step 6: Final answer
   x = 10,086.20