Finding the Fourth Proportional to 8,310.32, 12,436.80 and 5,146.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,310.32 : 12,436.80 = 5,146.46 : x
2. Step 2: Convert to fraction form
   8,310.32/12,436.80 = 5,146.46/x
3. Step 3: Cross multiply
   8,310.32x = 12,436.80 × 5,146.46
4. Step 4: Simplify right side
   8,310.32x = 64,005,493.73
5. Step 5: Solve for x
   x = 64,005,493.73/8,310.32
6. Step 6: Final answer
   x = 7,701.93