Finding the Fourth Proportional to 12,182.10, 16,815.75 and 7,150.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,182.10 : 16,815.75 = 7,150.53 : x
2. Step 2: Convert to fraction form
   12,182.10/16,815.75 = 7,150.53/x
3. Step 3: Cross multiply
   12,182.10x = 16,815.75 × 7,150.53
4. Step 4: Simplify right side
   12,182.10x = 120,241,506.73
5. Step 5: Solve for x
   x = 120,241,506.73/12,182.10
6. Step 6: Final answer
   x = 9,870.35