Finding the Fourth Proportional to 12,326.11, 18,483.76 and 3,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,326.11 : 18,483.76 = 3,890.50 : x
2. Step 2: Convert to fraction form
   12,326.11/18,483.76 = 3,890.50/x
3. Step 3: Cross multiply
   12,326.11x = 18,483.76 × 3,890.50
4. Step 4: Simplify right side
   12,326.11x = 71,911,026.93
5. Step 5: Solve for x
   x = 71,911,026.93/12,326.11
6. Step 6: Final answer
   x = 5,834.04