Finding the Fourth Proportional to 7,209.46, 9,948.72 and 4,224.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,209.46 : 9,948.72 = 4,224.88 : x
2. Step 2: Convert to fraction form
   7,209.46/9,948.72 = 4,224.88/x
3. Step 3: Cross multiply
   7,209.46x = 9,948.72 × 4,224.88
4. Step 4: Simplify right side
   7,209.46x = 42,032,148.15
5. Step 5: Solve for x
   x = 42,032,148.15/7,209.46
6. Step 6: Final answer
   x = 5,830.14