Finding the Fourth Proportional to 12,030.41, 18,046.31 and 5,457.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,030.41 : 18,046.31 = 5,457.12 : x
2. Step 2: Convert to fraction form
   12,030.41/18,046.31 = 5,457.12/x
3. Step 3: Cross multiply
   12,030.41x = 18,046.31 × 5,457.12
4. Step 4: Simplify right side
   12,030.41x = 98,480,851.94
5. Step 5: Solve for x
   x = 98,480,851.94/12,030.41
6. Step 6: Final answer
   x = 8,186.00