Finding the Fourth Proportional to 10,987.30, 16,483.76 and 3,196.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.30 : 16,483.76 = 3,196.11 : x
2. Step 2: Convert to fraction form
   10,987.30/16,483.76 = 3,196.11/x
3. Step 3: Cross multiply
   10,987.30x = 16,483.76 × 3,196.11
4. Step 4: Simplify right side
   10,987.30x = 52,683,910.17
5. Step 5: Solve for x
   x = 52,683,910.17/10,987.30
6. Step 6: Final answer
   x = 4,794.98