Finding the Fourth Proportional to 13,069.69, 19,605.71 and 3,709.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,069.69 : 19,605.71 = 3,709.80 : x
2. Step 2: Convert to fraction form
   13,069.69/19,605.71 = 3,709.80/x
3. Step 3: Cross multiply
   13,069.69x = 19,605.71 × 3,709.80
4. Step 4: Simplify right side
   13,069.69x = 72,733,272.23
5. Step 5: Solve for x
   x = 72,733,272.23/13,069.69
6. Step 6: Final answer
   x = 5,565.04