Finding the Fourth Proportional to 7,327.35, 10,111.72 and 3,970.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,327.35 : 10,111.72 = 3,970.25 : x
2. Step 2: Convert to fraction form
   7,327.35/10,111.72 = 3,970.25/x
3. Step 3: Cross multiply
   7,327.35x = 10,111.72 × 3,970.25
4. Step 4: Simplify right side
   7,327.35x = 40,146,056.33
5. Step 5: Solve for x
   x = 40,146,056.33/7,327.35
6. Step 6: Final answer
   x = 5,478.94