Finding the Fourth Proportional to 11,061.06, 16,582.05 and 5,213.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,061.06 : 16,582.05 = 5,213.58 : x
2. Step 2: Convert to fraction form
   11,061.06/16,582.05 = 5,213.58/x
3. Step 3: Cross multiply
   11,061.06x = 16,582.05 × 5,213.58
4. Step 4: Simplify right side
   11,061.06x = 86,451,844.24
5. Step 5: Solve for x
   x = 86,451,844.24/11,061.06
6. Step 6: Final answer
   x = 7,815.87