Finding the Fourth Proportional to 13,150.89, 18,147.69 and 7,182.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150.89 : 18,147.69 = 7,182.59 : x
2. Step 2: Convert to fraction form
   13,150.89/18,147.69 = 7,182.59/x
3. Step 3: Cross multiply
   13,150.89x = 18,147.69 × 7,182.59
4. Step 4: Simplify right side
   13,150.89x = 130,347,325.98
5. Step 5: Solve for x
   x = 130,347,325.98/13,150.89
6. Step 6: Final answer
   x = 9,911.67