Finding the Fourth Proportional to 13,078.32, 19,606.42 and 5,677.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078.32 : 19,606.42 = 5,677.18 : x
2. Step 2: Convert to fraction form
   13,078.32/19,606.42 = 5,677.18/x
3. Step 3: Cross multiply
   13,078.32x = 19,606.42 × 5,677.18
4. Step 4: Simplify right side
   13,078.32x = 111,309,175.50
5. Step 5: Solve for x
   x = 111,309,175.50/13,078.32
6. Step 6: Final answer
   x = 8,510.97