Finding the Fourth Proportional to 12,002.76, 17,998.56 and 3,680.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.76 : 17,998.56 = 3,680.64 : x
2. Step 2: Convert to fraction form
   12,002.76/17,998.56 = 3,680.64/x
3. Step 3: Cross multiply
   12,002.76x = 17,998.56 × 3,680.64
4. Step 4: Simplify right side
   12,002.76x = 66,246,219.88
5. Step 5: Solve for x
   x = 66,246,219.88/12,002.76
6. Step 6: Final answer
   x = 5,519.25