Finding the Fourth Proportional to 9,818.50, 13,549.50 and 5,342.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.50 : 13,549.50 = 5,342.22 : x
2. Step 2: Convert to fraction form
   9,818.50/13,549.50 = 5,342.22/x
3. Step 3: Cross multiply
   9,818.50x = 13,549.50 × 5,342.22
4. Step 4: Simplify right side
   9,818.50x = 72,384,409.89
5. Step 5: Solve for x
   x = 72,384,409.89/9,818.50
6. Step 6: Final answer
   x = 7,372.25