Finding the Fourth Proportional to 12,103.32, 18,147.22 and 5,087.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.32 : 18,147.22 = 5,087.88 : x
2. Step 2: Convert to fraction form
   12,103.32/18,147.22 = 5,087.88/x
3. Step 3: Cross multiply
   12,103.32x = 18,147.22 × 5,087.88
4. Step 4: Simplify right side
   12,103.32x = 92,330,877.69
5. Step 5: Solve for x
   x = 92,330,877.69/12,103.32
6. Step 6: Final answer
   x = 7,628.56