Finding the Fourth Proportional to 9,846.81, 13,588.58 and 5,370.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,846.81 : 13,588.58 = 5,370.57 : x
2. Step 2: Convert to fraction form
   9,846.81/13,588.58 = 5,370.57/x
3. Step 3: Cross multiply
   9,846.81x = 13,588.58 × 5,370.57
4. Step 4: Simplify right side
   9,846.81x = 72,978,433.52
5. Step 5: Solve for x
   x = 72,978,433.52/9,846.81
6. Step 6: Final answer
   x = 7,411.38