Finding the Fourth Proportional to 10,813.42, 16,223.46 and 6,131.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,813.42 : 16,223.46 = 6,131.98 : x
2. Step 2: Convert to fraction form
   10,813.42/16,223.46 = 6,131.98/x
3. Step 3: Cross multiply
   10,813.42x = 16,223.46 × 6,131.98
4. Step 4: Simplify right side
   10,813.42x = 99,481,932.25
5. Step 5: Solve for x
   x = 99,481,932.25/10,813.42
6. Step 6: Final answer
   x = 9,199.86