Finding the Fourth Proportional to 9,630.37, 13,289.94 and 5,381.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,630.37 : 13,289.94 = 5,381.59 : x
2. Step 2: Convert to fraction form
   9,630.37/13,289.94 = 5,381.59/x
3. Step 3: Cross multiply
   9,630.37x = 13,289.94 × 5,381.59
4. Step 4: Simplify right side
   9,630.37x = 71,521,008.20
5. Step 5: Solve for x
   x = 71,521,008.20/9,630.37
6. Step 6: Final answer
   x = 7,426.61