Finding the Fourth Proportional to 9,823.55, 13,556.07 and 5,347.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,823.55 : 13,556.07 = 5,347.31 : x
2. Step 2: Convert to fraction form
   9,823.55/13,556.07 = 5,347.31/x
3. Step 3: Cross multiply
   9,823.55x = 13,556.07 × 5,347.31
4. Step 4: Simplify right side
   9,823.55x = 72,488,508.67
5. Step 5: Solve for x
   x = 72,488,508.67/9,823.55
6. Step 6: Final answer
   x = 7,379.05