Finding the Fourth Proportional to 9,812.61, 13,541.31 and 5,336.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,812.61 : 13,541.31 = 5,336.48 : x
2. Step 2: Convert to fraction form
   9,812.61/13,541.31 = 5,336.48/x
3. Step 3: Cross multiply
   9,812.61x = 13,541.31 × 5,336.48
4. Step 4: Simplify right side
   9,812.61x = 72,262,963.84
5. Step 5: Solve for x
   x = 72,262,963.84/9,812.61
6. Step 6: Final answer
   x = 7,364.30