Finding the Fourth Proportional to 8,146.63, 12,208.89 and 3,460.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,146.63 : 12,208.89 = 3,460.76 : x
2. Step 2: Convert to fraction form
   8,146.63/12,208.89 = 3,460.76/x
3. Step 3: Cross multiply
   8,146.63x = 12,208.89 × 3,460.76
4. Step 4: Simplify right side
   8,146.63x = 42,252,006.67
5. Step 5: Solve for x
   x = 42,252,006.67/8,146.63
6. Step 6: Final answer
   x = 5,186.44