Finding the Fourth Proportional to 12,967.89, 19,454.76 and 3,962.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,967.89 : 19,454.76 = 3,962.81 : x
2. Step 2: Convert to fraction form
   12,967.89/19,454.76 = 3,962.81/x
3. Step 3: Cross multiply
   12,967.89x = 19,454.76 × 3,962.81
4. Step 4: Simplify right side
   12,967.89x = 77,095,511.40
5. Step 5: Solve for x
   x = 77,095,511.40/12,967.89
6. Step 6: Final answer
   x = 5,945.11