Finding the Fourth Proportional to 6,120.72, 8,445.72 and 3,468.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,120.72 : 8,445.72 = 3,468.24 : x
2. Step 2: Convert to fraction form
   6,120.72/8,445.72 = 3,468.24/x
3. Step 3: Cross multiply
   6,120.72x = 8,445.72 × 3,468.24
4. Step 4: Simplify right side
   6,120.72x = 29,291,783.93
5. Step 5: Solve for x
   x = 29,291,783.93/6,120.72
6. Step 6: Final answer
   x = 4,785.68