Finding the Fourth Proportional to 7,154.97, 9,872.60 and 4,321.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,154.97 : 9,872.60 = 4,321.59 : x
2. Step 2: Convert to fraction form
   7,154.97/9,872.60 = 4,321.59/x
3. Step 3: Cross multiply
   7,154.97x = 9,872.60 × 4,321.59
4. Step 4: Simplify right side
   7,154.97x = 42,665,307.83
5. Step 5: Solve for x
   x = 42,665,307.83/7,154.97
6. Step 6: Final answer
   x = 5,963.03