Finding the Fourth Proportional to 13,176.90, 19,766.37 and 3,817.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,176.90 : 19,766.37 = 3,817.05 : x
2. Step 2: Convert to fraction form
   13,176.90/19,766.37 = 3,817.05/x
3. Step 3: Cross multiply
   13,176.90x = 19,766.37 × 3,817.05
4. Step 4: Simplify right side
   13,176.90x = 75,449,222.61
5. Step 5: Solve for x
   x = 75,449,222.61/13,176.90
6. Step 6: Final answer
   x = 5,725.87