Finding the Fourth Proportional to 3,680.47, 5,515.20 and 3,150.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680.47 : 5,515.20 = 3,150.22 : x
2. Step 2: Convert to fraction form
   3,680.47/5,515.20 = 3,150.22/x
3. Step 3: Cross multiply
   3,680.47x = 5,515.20 × 3,150.22
4. Step 4: Simplify right side
   3,680.47x = 17,374,093.34
5. Step 5: Solve for x
   x = 17,374,093.34/3,680.47
6. Step 6: Final answer
   x = 4,720.62