Finding the Fourth Proportional to 6,870.52, 9,484.82 and 4,355.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.52 : 9,484.82 = 4,355.20 : x
2. Step 2: Convert to fraction form
   6,870.52/9,484.82 = 4,355.20/x
3. Step 3: Cross multiply
   6,870.52x = 9,484.82 × 4,355.20
4. Step 4: Simplify right side
   6,870.52x = 41,308,288.06
5. Step 5: Solve for x
   x = 41,308,288.06/6,870.52
6. Step 6: Final answer
   x = 6,012.40