Finding the Fourth Proportional to 7,327.90, 10,112.54 and 3,970.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,327.90 : 10,112.54 = 3,970.72 : x
2. Step 2: Convert to fraction form
   7,327.90/10,112.54 = 3,970.72/x
3. Step 3: Cross multiply
   7,327.90x = 10,112.54 × 3,970.72
4. Step 4: Simplify right side
   7,327.90x = 40,154,064.83
5. Step 5: Solve for x
   x = 40,154,064.83/7,327.90
6. Step 6: Final answer
   x = 5,479.61