Finding the Fourth Proportional to 9,443.20, 13,030.56 and 5,251.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,443.20 : 13,030.56 = 5,251.20 : x
2. Step 2: Convert to fraction form
   9,443.20/13,030.56 = 5,251.20/x
3. Step 3: Cross multiply
   9,443.20x = 13,030.56 × 5,251.20
4. Step 4: Simplify right side
   9,443.20x = 68,426,076.67
5. Step 5: Solve for x
   x = 68,426,076.67/9,443.20
6. Step 6: Final answer
   x = 7,246.07