Finding the Fourth Proportional to 8,308.77, 12,460.71 and 3,113.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.77 : 12,460.71 = 3,113.43 : x
2. Step 2: Convert to fraction form
   8,308.77/12,460.71 = 3,113.43/x
3. Step 3: Cross multiply
   8,308.77x = 12,460.71 × 3,113.43
4. Step 4: Simplify right side
   8,308.77x = 38,795,548.34
5. Step 5: Solve for x
   x = 38,795,548.34/8,308.77
6. Step 6: Final answer
   x = 4,669.23