Finding the Fourth Proportional to 10,826.05, 14,931.68 and 7,474.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.05 : 14,931.68 = 7,474.47 : x
2. Step 2: Convert to fraction form
   10,826.05/14,931.68 = 7,474.47/x
3. Step 3: Cross multiply
   10,826.05x = 14,931.68 × 7,474.47
4. Step 4: Simplify right side
   10,826.05x = 111,606,356.84
5. Step 5: Solve for x
   x = 111,606,356.84/10,826.05
6. Step 6: Final answer
   x = 10,309.06