Finding the Fourth Proportional to 12,913.35, 19,364.27 and 3,677.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,913.35 : 19,364.27 = 3,677.19 : x
2. Step 2: Convert to fraction form
   12,913.35/19,364.27 = 3,677.19/x
3. Step 3: Cross multiply
   12,913.35x = 19,364.27 × 3,677.19
4. Step 4: Simplify right side
   12,913.35x = 71,206,081.62
5. Step 5: Solve for x
   x = 71,206,081.62/12,913.35
6. Step 6: Final answer
   x = 5,514.14