Finding the Fourth Proportional to 12,683.72, 19,028.69 and 4,363.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,683.72 : 19,028.69 = 4,363.86 : x
2. Step 2: Convert to fraction form
   12,683.72/19,028.69 = 4,363.86/x
3. Step 3: Cross multiply
   12,683.72x = 19,028.69 × 4,363.86
4. Step 4: Simplify right side
   12,683.72x = 83,038,517.32
5. Step 5: Solve for x
   x = 83,038,517.32/12,683.72
6. Step 6: Final answer
   x = 6,546.86