Finding the Fourth Proportional to 7,009.02, 9,672.41 and 3,865.21

Step by Step Solution

1. Step 1: Write the proportion equation
   7,009.02 : 9,672.41 = 3,865.21 : x
2. Step 2: Convert to fraction form
   7,009.02/9,672.41 = 3,865.21/x
3. Step 3: Cross multiply
   7,009.02x = 9,672.41 × 3,865.21
4. Step 4: Simplify right side
   7,009.02x = 37,385,881.34
5. Step 5: Solve for x
   x = 37,385,881.34/7,009.02
6. Step 6: Final answer
   x = 5,333.97