Finding the Fourth Proportional to 13,155.47, 18,151.56 and 7,849.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155.47 : 18,151.56 = 7,849.25 : x
2. Step 2: Convert to fraction form
   13,155.47/18,151.56 = 7,849.25/x
3. Step 3: Cross multiply
   13,155.47x = 18,151.56 × 7,849.25
4. Step 4: Simplify right side
   13,155.47x = 142,476,132.33
5. Step 5: Solve for x
   x = 142,476,132.33/13,155.47
6. Step 6: Final answer
   x = 10,830.18