Finding the Fourth Proportional to 6,817.30, 9,411.59 and 4,128.97

Step by Step Solution

1. Step 1: Write the proportion equation
   6,817.30 : 9,411.59 = 4,128.97 : x
2. Step 2: Convert to fraction form
   6,817.30/9,411.59 = 4,128.97/x
3. Step 3: Cross multiply
   6,817.30x = 9,411.59 × 4,128.97
4. Step 4: Simplify right side
   6,817.30x = 38,860,172.76
5. Step 5: Solve for x
   x = 38,860,172.76/6,817.30
6. Step 6: Final answer
   x = 5,700.23