Finding the Fourth Proportional to 9,846.90, 13,588.41 and 5,370.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,846.90 : 13,588.41 = 5,370.72 : x
2. Step 2: Convert to fraction form
   9,846.90/13,588.41 = 5,370.72/x
3. Step 3: Cross multiply
   9,846.90x = 13,588.41 × 5,370.72
4. Step 4: Simplify right side
   9,846.90x = 72,979,545.36
5. Step 5: Solve for x
   x = 72,979,545.36/9,846.90
6. Step 6: Final answer
   x = 7,411.42