Finding the Fourth Proportional to 12,485.82, 18,730.17 and 4,166.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485.82 : 18,730.17 = 4,166.94 : x
2. Step 2: Convert to fraction form
   12,485.82/18,730.17 = 4,166.94/x
3. Step 3: Cross multiply
   12,485.82x = 18,730.17 × 4,166.94
4. Step 4: Simplify right side
   12,485.82x = 78,047,494.58
5. Step 5: Solve for x
   x = 78,047,494.58/12,485.82
6. Step 6: Final answer
   x = 6,250.89