Finding the Fourth Proportional to 10,729.42, 14,808.48 and 6,191.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,729.42 : 14,808.48 = 6,191.31 : x
2. Step 2: Convert to fraction form
   10,729.42/14,808.48 = 6,191.31/x
3. Step 3: Cross multiply
   10,729.42x = 14,808.48 × 6,191.31
4. Step 4: Simplify right side
   10,729.42x = 91,683,890.31
5. Step 5: Solve for x
   x = 91,683,890.31/10,729.42
6. Step 6: Final answer
   x = 8,545.09