Finding the Fourth Proportional to 6,142.71, 8,477.82 and 3,489.57

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142.71 : 8,477.82 = 3,489.57 : x
2. Step 2: Convert to fraction form
   6,142.71/8,477.82 = 3,489.57/x
3. Step 3: Cross multiply
   6,142.71x = 8,477.82 × 3,489.57
4. Step 4: Simplify right side
   6,142.71x = 29,583,946.34
5. Step 5: Solve for x
   x = 29,583,946.34/6,142.71
6. Step 6: Final answer
   x = 4,816.11