Finding the Fourth Proportional to 8,646.17, 12,969.50 and 3,380.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,646.17 : 12,969.50 = 3,380.96 : x
2. Step 2: Convert to fraction form
   8,646.17/12,969.50 = 3,380.96/x
3. Step 3: Cross multiply
   8,646.17x = 12,969.50 × 3,380.96
4. Step 4: Simplify right side
   8,646.17x = 43,849,343.82
5. Step 5: Solve for x
   x = 43,849,343.82/8,646.17
6. Step 6: Final answer
   x = 5,071.54