Finding the Fourth Proportional to 30,336.60, 45,501.83 and 8,147.09

Step by Step Solution

1. Step 1: Write the proportion equation
   30,336.60 : 45,501.83 = 8,147.09 : x
2. Step 2: Convert to fraction form
   30,336.60/45,501.83 = 8,147.09/x
3. Step 3: Cross multiply
   30,336.60x = 45,501.83 × 8,147.09
4. Step 4: Simplify right side
   30,336.60x = 370,707,648.82
5. Step 5: Solve for x
   x = 370,707,648.82/30,336.60
6. Step 6: Final answer
   x = 12,219.81