Finding the Fourth Proportional to 9,818.70, 13,549.88 and 5,342.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.70 : 13,549.88 = 5,342.39 : x
2. Step 2: Convert to fraction form
   9,818.70/13,549.88 = 5,342.39/x
3. Step 3: Cross multiply
   9,818.70x = 13,549.88 × 5,342.39
4. Step 4: Simplify right side
   9,818.70x = 72,388,648.95
5. Step 5: Solve for x
   x = 72,388,648.95/9,818.70
6. Step 6: Final answer
   x = 7,372.53