Finding the Fourth Proportional to 6,510.69, 8,989.20 and 4,156.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,510.69 : 8,989.20 = 4,156.02 : x
2. Step 2: Convert to fraction form
   6,510.69/8,989.20 = 4,156.02/x
3. Step 3: Cross multiply
   6,510.69x = 8,989.20 × 4,156.02
4. Step 4: Simplify right side
   6,510.69x = 37,359,294.98
5. Step 5: Solve for x
   x = 37,359,294.98/6,510.69
6. Step 6: Final answer
   x = 5,738.15