Finding the Fourth Proportional to 9,834.72, 13,572.12 and 5,358.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,834.72 : 13,572.12 = 5,358.69 : x
2. Step 2: Convert to fraction form
   9,834.72/13,572.12 = 5,358.69/x
3. Step 3: Cross multiply
   9,834.72x = 13,572.12 × 5,358.69
4. Step 4: Simplify right side
   9,834.72x = 72,728,803.82
5. Step 5: Solve for x
   x = 72,728,803.82/9,834.72
6. Step 6: Final answer
   x = 7,395.11