Finding the Fourth Proportional to 10,987.56, 16,484.13 and 3,196.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.56 : 16,484.13 = 3,196.37 : x
2. Step 2: Convert to fraction form
   10,987.56/16,484.13 = 3,196.37/x
3. Step 3: Cross multiply
   10,987.56x = 16,484.13 × 3,196.37
4. Step 4: Simplify right side
   10,987.56x = 52,689,296.19
5. Step 5: Solve for x
   x = 52,689,296.19/10,987.56
6. Step 6: Final answer
   x = 4,795.36