Finding the Fourth Proportional to 11,216.27, 15,484.06 and 8,692.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,216.27 : 15,484.06 = 8,692.72 : x
2. Step 2: Convert to fraction form
   11,216.27/15,484.06 = 8,692.72/x
3. Step 3: Cross multiply
   11,216.27x = 15,484.06 × 8,692.72
4. Step 4: Simplify right side
   11,216.27x = 134,598,570.20
5. Step 5: Solve for x
   x = 134,598,570.20/11,216.27
6. Step 6: Final answer
   x = 12,000.29