Finding the Fourth Proportional to 9,113.10, 12,571.63 and 5,336.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,113.10 : 12,571.63 = 5,336.34 : x
2. Step 2: Convert to fraction form
   9,113.10/12,571.63 = 5,336.34/x
3. Step 3: Cross multiply
   9,113.10x = 12,571.63 × 5,336.34
4. Step 4: Simplify right side
   9,113.10x = 67,086,492.03
5. Step 5: Solve for x
   x = 67,086,492.03/9,113.10
6. Step 6: Final answer
   x = 7,361.54