Finding the Fourth Proportional to 12,051.68, 18,080.16 and 3,617.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,051.68 : 18,080.16 = 3,617.82 : x
2. Step 2: Convert to fraction form
   12,051.68/18,080.16 = 3,617.82/x
3. Step 3: Cross multiply
   12,051.68x = 18,080.16 × 3,617.82
4. Step 4: Simplify right side
   12,051.68x = 65,410,764.45
5. Step 5: Solve for x
   x = 65,410,764.45/12,051.68
6. Step 6: Final answer
   x = 5,427.52