Finding the Fourth Proportional to 13,143.58, 19,715.27 and 3,282.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,143.58 : 19,715.27 = 3,282.80 : x
2. Step 2: Convert to fraction form
   13,143.58/19,715.27 = 3,282.80/x
3. Step 3: Cross multiply
   13,143.58x = 19,715.27 × 3,282.80
4. Step 4: Simplify right side
   13,143.58x = 64,721,173.37
5. Step 5: Solve for x
   x = 64,721,173.37/13,143.58
6. Step 6: Final answer
   x = 4,924.17