Finding the Fourth Proportional to 12,145.55, 16,756.98 and 6,839.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,145.55 : 16,756.98 = 6,839.34 : x
2. Step 2: Convert to fraction form
   12,145.55/16,756.98 = 6,839.34/x
3. Step 3: Cross multiply
   12,145.55x = 16,756.98 × 6,839.34
4. Step 4: Simplify right side
   12,145.55x = 114,606,683.59
5. Step 5: Solve for x
   x = 114,606,683.59/12,145.55
6. Step 6: Final answer
   x = 9,436.11