Finding the Fourth Proportional to 9,555.30, 13,186.90 and 5,363.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,555.30 : 13,186.90 = 5,363.82 : x
2. Step 2: Convert to fraction form
   9,555.30/13,186.90 = 5,363.82/x
3. Step 3: Cross multiply
   9,555.30x = 13,186.90 × 5,363.82
4. Step 4: Simplify right side
   9,555.30x = 70,732,157.96
5. Step 5: Solve for x
   x = 70,732,157.96/9,555.30
6. Step 6: Final answer
   x = 7,402.40