Finding the Fourth Proportional to 10,986.08, 16,479.72 and 3,592.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.08 : 16,479.72 = 3,592.80 : x
2. Step 2: Convert to fraction form
   10,986.08/16,479.72 = 3,592.80/x
3. Step 3: Cross multiply
   10,986.08x = 16,479.72 × 3,592.80
4. Step 4: Simplify right side
   10,986.08x = 59,208,338.02
5. Step 5: Solve for x
   x = 59,208,338.02/10,986.08
6. Step 6: Final answer
   x = 5,389.40