Finding the Fourth Proportional to 9,539.72, 13,164.81 and 5,347.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,539.72 : 13,164.81 = 5,347.97 : x
2. Step 2: Convert to fraction form
   9,539.72/13,164.81 = 5,347.97/x
3. Step 3: Cross multiply
   9,539.72x = 13,164.81 × 5,347.97
4. Step 4: Simplify right side
   9,539.72x = 70,405,002.51
5. Step 5: Solve for x
   x = 70,405,002.51/9,539.72
6. Step 6: Final answer
   x = 7,380.20