Finding the Fourth Proportional to 10,443.20, 15,667.69 and 4,822.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.20 : 15,667.69 = 4,822.58 : x
2. Step 2: Convert to fraction form
   10,443.20/15,667.69 = 4,822.58/x
3. Step 3: Cross multiply
   10,443.20x = 15,667.69 × 4,822.58
4. Step 4: Simplify right side
   10,443.20x = 75,558,688.44
5. Step 5: Solve for x
   x = 75,558,688.44/10,443.20
6. Step 6: Final answer
   x = 7,235.20