Finding the Fourth Proportional to 8,892.72, 12,276.81 and 5,538.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,892.72 : 12,276.81 = 5,538.42 : x
2. Step 2: Convert to fraction form
   8,892.72/12,276.81 = 5,538.42/x
3. Step 3: Cross multiply
   8,892.72x = 12,276.81 × 5,538.42
4. Step 4: Simplify right side
   8,892.72x = 67,994,130.04
5. Step 5: Solve for x
   x = 67,994,130.04/8,892.72
6. Step 6: Final answer
   x = 7,646.04