Finding the Fourth Proportional to 9,818.21, 13,549.41 and 5,342.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.21 : 13,549.41 = 5,342.27 : x
2. Step 2: Convert to fraction form
   9,818.21/13,549.41 = 5,342.27/x
3. Step 3: Cross multiply
   9,818.21x = 13,549.41 × 5,342.27
4. Step 4: Simplify right side
   9,818.21x = 72,384,538.81
5. Step 5: Solve for x
   x = 72,384,538.81/9,818.21
6. Step 6: Final answer
   x = 7,372.48