Finding the Fourth Proportional to 8,314.93, 12,461.57 and 3,378.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,314.93 : 12,461.57 = 3,378.80 : x
2. Step 2: Convert to fraction form
   8,314.93/12,461.57 = 3,378.80/x
3. Step 3: Cross multiply
   8,314.93x = 12,461.57 × 3,378.80
4. Step 4: Simplify right side
   8,314.93x = 42,105,175.42
5. Step 5: Solve for x
   x = 42,105,175.42/8,314.93
6. Step 6: Final answer
   x = 5,063.80