Finding the Fourth Proportional to 7,327.34, 10,111.74 and 3,970.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,327.34 : 10,111.74 = 3,970.18 : x
2. Step 2: Convert to fraction form
   7,327.34/10,111.74 = 3,970.18/x
3. Step 3: Cross multiply
   7,327.34x = 10,111.74 × 3,970.18
4. Step 4: Simplify right side
   7,327.34x = 40,145,427.91
5. Step 5: Solve for x
   x = 40,145,427.91/7,327.34
6. Step 6: Final answer
   x = 5,478.85