Finding the Fourth Proportional to 12,984.25, 19,480.91 and 4,100.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,984.25 : 19,480.91 = 4,100.96 : x
2. Step 2: Convert to fraction form
   12,984.25/19,480.91 = 4,100.96/x
3. Step 3: Cross multiply
   12,984.25x = 19,480.91 × 4,100.96
4. Step 4: Simplify right side
   12,984.25x = 79,890,432.67
5. Step 5: Solve for x
   x = 79,890,432.67/12,984.25
6. Step 6: Final answer
   x = 6,152.87