Finding the Fourth Proportional to 11,063.59, 16,585.34 and 5,518.63

Step by Step Solution

1. Step 1: Write the proportion equation
   11,063.59 : 16,585.34 = 5,518.63 : x
2. Step 2: Convert to fraction form
   11,063.59/16,585.34 = 5,518.63/x
3. Step 3: Cross multiply
   11,063.59x = 16,585.34 × 5,518.63
4. Step 4: Simplify right side
   11,063.59x = 91,528,389.41
5. Step 5: Solve for x
   x = 91,528,389.41/11,063.59
6. Step 6: Final answer
   x = 8,272.94