Finding the Fourth Proportional to 9,818.30, 13,549.07 and 5,342.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.30 : 13,549.07 = 5,342.18 : x
2. Step 2: Convert to fraction form
   9,818.30/13,549.07 = 5,342.18/x
3. Step 3: Cross multiply
   9,818.30x = 13,549.07 × 5,342.18
4. Step 4: Simplify right side
   9,818.30x = 72,381,476.32
5. Step 5: Solve for x
   x = 72,381,476.32/9,818.30
6. Step 6: Final answer
   x = 7,372.10