Finding the Fourth Proportional to 13,151.30, 18,151.16 and 7,846.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,151.30 : 18,151.16 = 7,846.47 : x
2. Step 2: Convert to fraction form
   13,151.30/18,151.16 = 7,846.47/x
3. Step 3: Cross multiply
   13,151.30x = 18,151.16 × 7,846.47
4. Step 4: Simplify right side
   13,151.30x = 142,422,493.17
5. Step 5: Solve for x
   x = 142,422,493.17/13,151.30
6. Step 6: Final answer
   x = 10,829.54