Finding the Fourth Proportional to 13,184.72, 19,779.64 and 3,950.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,184.72 : 19,779.64 = 3,950.80 : x
2. Step 2: Convert to fraction form
   13,184.72/19,779.64 = 3,950.80/x
3. Step 3: Cross multiply
   13,184.72x = 19,779.64 × 3,950.80
4. Step 4: Simplify right side
   13,184.72x = 78,145,401.71
5. Step 5: Solve for x
   x = 78,145,401.71/13,184.72
6. Step 6: Final answer
   x = 5,926.97