Finding the Fourth Proportional to 13,151.97, 19,721.78 and 4,826.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,151.97 : 19,721.78 = 4,826.18 : x
2. Step 2: Convert to fraction form
   13,151.97/19,721.78 = 4,826.18/x
3. Step 3: Cross multiply
   13,151.97x = 19,721.78 × 4,826.18
4. Step 4: Simplify right side
   13,151.97x = 95,180,903.47
5. Step 5: Solve for x
   x = 95,180,903.47/13,151.97
6. Step 6: Final answer
   x = 7,237.01