Finding the Fourth Proportional to 11,861.42, 17,794.05 and 3,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,861.42 : 17,794.05 = 3,651.50 : x
2. Step 2: Convert to fraction form
   11,861.42/17,794.05 = 3,651.50/x
3. Step 3: Cross multiply
   11,861.42x = 17,794.05 × 3,651.50
4. Step 4: Simplify right side
   11,861.42x = 64,974,973.58
5. Step 5: Solve for x
   x = 64,974,973.58/11,861.42
6. Step 6: Final answer
   x = 5,477.84