Finding the Fourth Proportional to 12,303.30, 18,457.88 and 3,983.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,303.30 : 18,457.88 = 3,983.31 : x
2. Step 2: Convert to fraction form
   12,303.30/18,457.88 = 3,983.31/x
3. Step 3: Cross multiply
   12,303.30x = 18,457.88 × 3,983.31
4. Step 4: Simplify right side
   12,303.30x = 73,523,438.07
5. Step 5: Solve for x
   x = 73,523,438.07/12,303.30
6. Step 6: Final answer
   x = 5,975.91