Finding the Fourth Proportional to 10,839.42, 16,226.01 and 7,134.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,839.42 : 16,226.01 = 7,134.30 : x
2. Step 2: Convert to fraction form
   10,839.42/16,226.01 = 7,134.30/x
3. Step 3: Cross multiply
   10,839.42x = 16,226.01 × 7,134.30
4. Step 4: Simplify right side
   10,839.42x = 115,761,223.14
5. Step 5: Solve for x
   x = 115,761,223.14/10,839.42
6. Step 6: Final answer
   x = 10,679.65