Finding the Fourth Proportional to 10,987.88, 16,484.52 and 3,196.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.88 : 16,484.52 = 3,196.76 : x
2. Step 2: Convert to fraction form
   10,987.88/16,484.52 = 3,196.76/x
3. Step 3: Cross multiply
   10,987.88x = 16,484.52 × 3,196.76
4. Step 4: Simplify right side
   10,987.88x = 52,697,054.16
5. Step 5: Solve for x
   x = 52,697,054.16/10,987.88
6. Step 6: Final answer
   x = 4,795.93