Finding the Fourth Proportional to 10,672.12, 14,709.90 and 7,134.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,672.12 : 14,709.90 = 7,134.04 : x
2. Step 2: Convert to fraction form
   10,672.12/14,709.90 = 7,134.04/x
3. Step 3: Cross multiply
   10,672.12x = 14,709.90 × 7,134.04
4. Step 4: Simplify right side
   10,672.12x = 104,941,015.00
5. Step 5: Solve for x
   x = 104,941,015.00/10,672.12
6. Step 6: Final answer
   x = 9,833.19