Finding the Fourth Proportional to 7,155.59, 9,874.82 and 4,322.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155.59 : 9,874.82 = 4,322.57 : x
2. Step 2: Convert to fraction form
   7,155.59/9,874.82 = 4,322.57/x
3. Step 3: Cross multiply
   7,155.59x = 9,874.82 × 4,322.57
4. Step 4: Simplify right side
   7,155.59x = 42,684,603.33
5. Step 5: Solve for x
   x = 42,684,603.33/7,155.59
6. Step 6: Final answer
   x = 5,965.21