Finding the Fourth Proportional to 11,061.44, 16,582.61 and 5,213.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,061.44 : 16,582.61 = 5,213.96 : x
2. Step 2: Convert to fraction form
   11,061.44/16,582.61 = 5,213.96/x
3. Step 3: Cross multiply
   11,061.44x = 16,582.61 × 5,213.96
4. Step 4: Simplify right side
   11,061.44x = 86,460,995.36
5. Step 5: Solve for x
   x = 86,460,995.36/11,061.44
6. Step 6: Final answer
   x = 7,816.44