Finding the Fourth Proportional to 9,845.72, 13,586.81 and 5,369.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,845.72 : 13,586.81 = 5,369.46 : x
2. Step 2: Convert to fraction form
   9,845.72/13,586.81 = 5,369.46/x
3. Step 3: Cross multiply
   9,845.72x = 13,586.81 × 5,369.46
4. Step 4: Simplify right side
   9,845.72x = 72,953,846.25
5. Step 5: Solve for x
   x = 72,953,846.25/9,845.72
6. Step 6: Final answer
   x = 7,409.71