Finding the Fourth Proportional to 7,150.30, 9,867.40 and 4,355.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,150.30 : 9,867.40 = 4,355.80 : x
2. Step 2: Convert to fraction form
   7,150.30/9,867.40 = 4,355.80/x
3. Step 3: Cross multiply
   7,150.30x = 9,867.40 × 4,355.80
4. Step 4: Simplify right side
   7,150.30x = 42,980,385.36
5. Step 5: Solve for x
   x = 42,980,385.36/7,150.30
6. Step 6: Final answer
   x = 6,010.99