Finding the Fourth Proportional to 11,010.47, 16,500.17 and 8,533.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,010.47 : 16,500.17 = 8,533.69 : x
2. Step 2: Convert to fraction form
   11,010.47/16,500.17 = 8,533.69/x
3. Step 3: Cross multiply
   11,010.47x = 16,500.17 × 8,533.69
4. Step 4: Simplify right side
   11,010.47x = 140,807,315.81
5. Step 5: Solve for x
   x = 140,807,315.81/11,010.47
6. Step 6: Final answer
   x = 12,788.50