Finding the Fourth Proportional to 7,210.59, 9,951.57 and 4,227.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,210.59 : 9,951.57 = 4,227.60 : x
2. Step 2: Convert to fraction form
   7,210.59/9,951.57 = 4,227.60/x
3. Step 3: Cross multiply
   7,210.59x = 9,951.57 × 4,227.60
4. Step 4: Simplify right side
   7,210.59x = 42,071,257.33
5. Step 5: Solve for x
   x = 42,071,257.33/7,210.59
6. Step 6: Final answer
   x = 5,834.65