Finding the Fourth Proportional to 12,157.58, 18,230.60 and 5,581.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,157.58 : 18,230.60 = 5,581.82 : x
2. Step 2: Convert to fraction form
   12,157.58/18,230.60 = 5,581.82/x
3. Step 3: Cross multiply
   12,157.58x = 18,230.60 × 5,581.82
4. Step 4: Simplify right side
   12,157.58x = 101,759,927.69
5. Step 5: Solve for x
   x = 101,759,927.69/12,157.58
6. Step 6: Final answer
   x = 8,370.08