Finding the Fourth Proportional to 13,011.09, 19,517.86 and 3,651.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,011.09 : 19,517.86 = 3,651.07 : x
2. Step 2: Convert to fraction form
   13,011.09/19,517.86 = 3,651.07/x
3. Step 3: Cross multiply
   13,011.09x = 19,517.86 × 3,651.07
4. Step 4: Simplify right side
   13,011.09x = 71,261,054.85
5. Step 5: Solve for x
   x = 71,261,054.85/13,011.09
6. Step 6: Final answer
   x = 5,476.95