Finding the Fourth Proportional to 11,086.56, 16,624.96 and 4,156.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.56 : 16,624.96 = 4,156.20 : x
2. Step 2: Convert to fraction form
   11,086.56/16,624.96 = 4,156.20/x
3. Step 3: Cross multiply
   11,086.56x = 16,624.96 × 4,156.20
4. Step 4: Simplify right side
   11,086.56x = 69,096,658.75
5. Step 5: Solve for x
   x = 69,096,658.75/11,086.56
6. Step 6: Final answer
   x = 6,232.47