Finding the Fourth Proportional to 12,734.71, 19,099.97 and 3,375.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,734.71 : 19,099.97 = 3,375.30 : x
2. Step 2: Convert to fraction form
   12,734.71/19,099.97 = 3,375.30/x
3. Step 3: Cross multiply
   12,734.71x = 19,099.97 × 3,375.30
4. Step 4: Simplify right side
   12,734.71x = 64,468,196.15
5. Step 5: Solve for x
   x = 64,468,196.15/12,734.71
6. Step 6: Final answer
   x = 5,062.40