Finding the Fourth Proportional to 7,009.32, 9,672.90 and 3,865.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,009.32 : 9,672.90 = 3,865.50 : x
2. Step 2: Convert to fraction form
   7,009.32/9,672.90 = 3,865.50/x
3. Step 3: Cross multiply
   7,009.32x = 9,672.90 × 3,865.50
4. Step 4: Simplify right side
   7,009.32x = 37,390,594.95
5. Step 5: Solve for x
   x = 37,390,594.95/7,009.32
6. Step 6: Final answer
   x = 5,334.41