Finding the Fourth Proportional to 12,200.13, 18,300.00 and 3,880.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.13 : 18,300.00 = 3,880.02 : x
2. Step 2: Convert to fraction form
   12,200.13/18,300.00 = 3,880.02/x
3. Step 3: Cross multiply
   12,200.13x = 18,300.00 × 3,880.02
4. Step 4: Simplify right side
   12,200.13x = 71,004,443.24
5. Step 5: Solve for x
   x = 71,004,443.24/12,200.13
6. Step 6: Final answer
   x = 5,819.98