Finding the Fourth Proportional to 12,910.22, 19,366.05 and 3,675.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,910.22 : 19,366.05 = 3,675.50 : x
2. Step 2: Convert to fraction form
   12,910.22/19,366.05 = 3,675.50/x
3. Step 3: Cross multiply
   12,910.22x = 19,366.05 × 3,675.50
4. Step 4: Simplify right side
   12,910.22x = 71,179,916.78
5. Step 5: Solve for x
   x = 71,179,916.78/12,910.22
6. Step 6: Final answer
   x = 5,513.45