Finding the Fourth Proportional to 12,303.77, 18,457.40 and 3,981.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,303.77 : 18,457.40 = 3,981.02 : x
2. Step 2: Convert to fraction form
   12,303.77/18,457.40 = 3,981.02/x
3. Step 3: Cross multiply
   12,303.77x = 18,457.40 × 3,981.02
4. Step 4: Simplify right side
   12,303.77x = 73,479,196.21
5. Step 5: Solve for x
   x = 73,479,196.21/12,303.77
6. Step 6: Final answer
   x = 5,972.09