Finding the Fourth Proportional to 7,152.69, 9,871.32 and 4,009.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,152.69 : 9,871.32 = 4,009.49 : x
2. Step 2: Convert to fraction form
   7,152.69/9,871.32 = 4,009.49/x
3. Step 3: Cross multiply
   7,152.69x = 9,871.32 × 4,009.49
4. Step 4: Simplify right side
   7,152.69x = 39,578,889.42
5. Step 5: Solve for x
   x = 39,578,889.42/7,152.69
6. Step 6: Final answer
   x = 5,533.43