Finding the Fourth Proportional to 13,151.30, 18,148.49 and 7,182.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,151.30 : 18,148.49 = 7,182.98 : x
2. Step 2: Convert to fraction form
   13,151.30/18,148.49 = 7,182.98/x
3. Step 3: Cross multiply
   13,151.30x = 18,148.49 × 7,182.98
4. Step 4: Simplify right side
   13,151.30x = 130,360,351.53
5. Step 5: Solve for x
   x = 130,360,351.53/13,151.30
6. Step 6: Final answer
   x = 9,912.36