Finding the Fourth Proportional to 6,499.63, 8,969.49 and 3,515.47

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.63 : 8,969.49 = 3,515.47 : x
2. Step 2: Convert to fraction form
   6,499.63/8,969.49 = 3,515.47/x
3. Step 3: Cross multiply
   6,499.63x = 8,969.49 × 3,515.47
4. Step 4: Simplify right side
   6,499.63x = 31,531,973.01
5. Step 5: Solve for x
   x = 31,531,973.01/6,499.63
6. Step 6: Final answer
   x = 4,851.35