Finding the Fourth Proportional to 12,613.32, 18,922.01 and 3,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.32 : 18,922.01 = 3,847.50 : x
2. Step 2: Convert to fraction form
   12,613.32/18,922.01 = 3,847.50/x
3. Step 3: Cross multiply
   12,613.32x = 18,922.01 × 3,847.50
4. Step 4: Simplify right side
   12,613.32x = 72,802,414.24
5. Step 5: Solve for x
   x = 72,802,414.24/12,613.32
6. Step 6: Final answer
   x = 5,771.87