Finding the Fourth Proportional to 13,139.46, 19,717.38 and 5,348.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,139.46 : 19,717.38 = 5,348.25 : x
2. Step 2: Convert to fraction form
   13,139.46/19,717.38 = 5,348.25/x
3. Step 3: Cross multiply
   13,139.46x = 19,717.38 × 5,348.25
4. Step 4: Simplify right side
   13,139.46x = 105,453,477.59
5. Step 5: Solve for x
   x = 105,453,477.59/13,139.46
6. Step 6: Final answer
   x = 8,025.71