Finding the Fourth Proportional to 9,812.86, 13,541.92 and 5,336.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,812.86 : 13,541.92 = 5,336.60 : x
2. Step 2: Convert to fraction form
   9,812.86/13,541.92 = 5,336.60/x
3. Step 3: Cross multiply
   9,812.86x = 13,541.92 × 5,336.60
4. Step 4: Simplify right side
   9,812.86x = 72,267,729.22
5. Step 5: Solve for x
   x = 72,267,729.22/9,812.86
6. Step 6: Final answer
   x = 7,364.60