Finding the Fourth Proportional to 12,662.04, 18,982.77 and 5,272.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.04 : 18,982.77 = 5,272.02 : x
2. Step 2: Convert to fraction form
   12,662.04/18,982.77 = 5,272.02/x
3. Step 3: Cross multiply
   12,662.04x = 18,982.77 × 5,272.02
4. Step 4: Simplify right side
   12,662.04x = 100,077,552.98
5. Step 5: Solve for x
   x = 100,077,552.98/12,662.04
6. Step 6: Final answer
   x = 7,903.75