Finding the Fourth Proportional to 11,059.98, 16,585.47 and 5,511.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,059.98 : 16,585.47 = 5,511.30 : x
2. Step 2: Convert to fraction form
   11,059.98/16,585.47 = 5,511.30/x
3. Step 3: Cross multiply
   11,059.98x = 16,585.47 × 5,511.30
4. Step 4: Simplify right side
   11,059.98x = 91,407,500.81
5. Step 5: Solve for x
   x = 91,407,500.81/11,059.98
6. Step 6: Final answer
   x = 8,264.71