Finding the Fourth Proportional to 8,345.04, 12,518.16 and 3,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,345.04 : 12,518.16 = 3,150.72 : x
2. Step 2: Convert to fraction form
   8,345.04/12,518.16 = 3,150.72/x
3. Step 3: Cross multiply
   8,345.04x = 12,518.16 × 3,150.72
4. Step 4: Simplify right side
   8,345.04x = 39,441,217.08
5. Step 5: Solve for x
   x = 39,441,217.08/8,345.04
6. Step 6: Final answer
   x = 4,726.31