Finding the Fourth Proportional to 9,853.27, 13,597.81 and 5,377.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,853.27 : 13,597.81 = 5,377.31 : x
2. Step 2: Convert to fraction form
   9,853.27/13,597.81 = 5,377.31/x
3. Step 3: Cross multiply
   9,853.27x = 13,597.81 × 5,377.31
4. Step 4: Simplify right side
   9,853.27x = 73,119,685.74
5. Step 5: Solve for x
   x = 73,119,685.74/9,853.27
6. Step 6: Final answer
   x = 7,420.85