Finding the Fourth Proportional to 13,099.30, 18,076.69 and 7,356.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,099.30 : 18,076.69 = 7,356.60 : x
2. Step 2: Convert to fraction form
   13,099.30/18,076.69 = 7,356.60/x
3. Step 3: Cross multiply
   13,099.30x = 18,076.69 × 7,356.60
4. Step 4: Simplify right side
   13,099.30x = 132,982,977.65
5. Step 5: Solve for x
   x = 132,982,977.65/13,099.30
6. Step 6: Final answer
   x = 10,151.91