Finding the Fourth Proportional to 8,776.28, 12,111.50 and 5,241.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,776.28 : 12,111.50 = 5,241.53 : x
2. Step 2: Convert to fraction form
   8,776.28/12,111.50 = 5,241.53/x
3. Step 3: Cross multiply
   8,776.28x = 12,111.50 × 5,241.53
4. Step 4: Simplify right side
   8,776.28x = 63,482,833.98
5. Step 5: Solve for x
   x = 63,482,833.98/8,776.28
6. Step 6: Final answer
   x = 7,233.45