Finding the Fourth Proportional to 12,662.02, 18,982.81 and 5,272.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.02 : 18,982.81 = 5,272.04 : x
2. Step 2: Convert to fraction form
   12,662.02/18,982.81 = 5,272.04/x
3. Step 3: Cross multiply
   12,662.02x = 18,982.81 × 5,272.04
4. Step 4: Simplify right side
   12,662.02x = 100,078,051.25
5. Step 5: Solve for x
   x = 100,078,051.25/12,662.02
6. Step 6: Final answer
   x = 7,903.80