Finding the Fourth Proportional to 6,491.17, 8,957.81 and 3,507.00

Step by Step Solution

1. Step 1: Write the proportion equation
   6,491.17 : 8,957.81 = 3,507.00 : x
2. Step 2: Convert to fraction form
   6,491.17/8,957.81 = 3,507.00/x
3. Step 3: Cross multiply
   6,491.17x = 8,957.81 × 3,507.00
4. Step 4: Simplify right side
   6,491.17x = 31,414,994.88
5. Step 5: Solve for x
   x = 31,414,994.88/6,491.17
6. Step 6: Final answer
   x = 4,839.65