Finding the Fourth Proportional to 6,144, 8,478.72 and 3,660

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144 : 8,478.72 = 3,660 : x
2. Step 2: Convert to fraction form
   6,144/8,478.72 = 3,660/x
3. Step 3: Cross multiply
   6,144x = 8,478.72 × 3,660
4. Step 4: Simplify right side
   6,144x = 31,032,115.20
5. Step 5: Solve for x
   x = 31,032,115.20/6,144
6. Step 6: Final answer
   x = 5,050.80