Finding the Fourth Proportional to 10,406.84, 14,361.78 and 5,691.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,406.84 : 14,361.78 = 5,691.12 : x
2. Step 2: Convert to fraction form
   10,406.84/14,361.78 = 5,691.12/x
3. Step 3: Cross multiply
   10,406.84x = 14,361.78 × 5,691.12
4. Step 4: Simplify right side
   10,406.84x = 81,734,613.39
5. Step 5: Solve for x
   x = 81,734,613.39/10,406.84
6. Step 6: Final answer
   x = 7,853.94