Finding the Fourth Proportional to 6,942.36, 9,583.61 and 4,427.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,942.36 : 9,583.61 = 4,427.90 : x
2. Step 2: Convert to fraction form
   6,942.36/9,583.61 = 4,427.90/x
3. Step 3: Cross multiply
   6,942.36x = 9,583.61 × 4,427.90
4. Step 4: Simplify right side
   6,942.36x = 42,435,196.66
5. Step 5: Solve for x
   x = 42,435,196.66/6,942.36
6. Step 6: Final answer
   x = 6,112.50