Finding the Fourth Proportional to 9,572.54, 13,210.83 and 5,381.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,572.54 : 13,210.83 = 5,381.42 : x
2. Step 2: Convert to fraction form
   9,572.54/13,210.83 = 5,381.42/x
3. Step 3: Cross multiply
   9,572.54x = 13,210.83 × 5,381.42
4. Step 4: Simplify right side
   9,572.54x = 71,093,024.78
5. Step 5: Solve for x
   x = 71,093,024.78/9,572.54
6. Step 6: Final answer
   x = 7,426.77