Finding the Fourth Proportional to 9,573.12, 13,210.90 and 5,381.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,573.12 : 13,210.90 = 5,381.37 : x
2. Step 2: Convert to fraction form
   9,573.12/13,210.90 = 5,381.37/x
3. Step 3: Cross multiply
   9,573.12x = 13,210.90 × 5,381.37
4. Step 4: Simplify right side
   9,573.12x = 71,092,727.48
5. Step 5: Solve for x
   x = 71,092,727.48/9,573.12
6. Step 6: Final answer
   x = 7,426.29