Finding the Fourth Proportional to 10,988.67, 16,484.63 and 3,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,988.67 : 16,484.63 = 3,196.47 : x
2. Step 2: Convert to fraction form
   10,988.67/16,484.63 = 3,196.47/x
3. Step 3: Cross multiply
   10,988.67x = 16,484.63 × 3,196.47
4. Step 4: Simplify right side
   10,988.67x = 52,692,609.27
5. Step 5: Solve for x
   x = 52,692,609.27/10,988.67
6. Step 6: Final answer
   x = 4,795.18