Finding the Fourth Proportional to 18,606.83, 27,912.96 and 5,457.47

Step by Step Solution

1. Step 1: Write the proportion equation
   18,606.83 : 27,912.96 = 5,457.47 : x
2. Step 2: Convert to fraction form
   18,606.83/27,912.96 = 5,457.47/x
3. Step 3: Cross multiply
   18,606.83x = 27,912.96 × 5,457.47
4. Step 4: Simplify right side
   18,606.83x = 152,334,002.25
5. Step 5: Solve for x
   x = 152,334,002.25/18,606.83
6. Step 6: Final answer
   x = 8,187.00