Finding the Fourth Proportional to 6,199.69, 9,316.56 and 3,280.06

Step by Step Solution

1. Step 1: Write the proportion equation
   6,199.69 : 9,316.56 = 3,280.06 : x
2. Step 2: Convert to fraction form
   6,199.69/9,316.56 = 3,280.06/x
3. Step 3: Cross multiply
   6,199.69x = 9,316.56 × 3,280.06
4. Step 4: Simplify right side
   6,199.69x = 30,558,875.79
5. Step 5: Solve for x
   x = 30,558,875.79/6,199.69
6. Step 6: Final answer
   x = 4,929.10