Finding the Fourth Proportional to 9,856.44, 13,604.23 and 5,667.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,856.44 : 13,604.23 = 5,667.12 : x
2. Step 2: Convert to fraction form
   9,856.44/13,604.23 = 5,667.12/x
3. Step 3: Cross multiply
   9,856.44x = 13,604.23 × 5,667.12
4. Step 4: Simplify right side
   9,856.44x = 77,096,803.92
5. Step 5: Solve for x
   x = 77,096,803.92/9,856.44
6. Step 6: Final answer
   x = 7,821.97