Finding the Fourth Proportional to 11,019.21, 16,530.91 and 3,625.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,019.21 : 16,530.91 = 3,625.79 : x
2. Step 2: Convert to fraction form
   11,019.21/16,530.91 = 3,625.79/x
3. Step 3: Cross multiply
   11,019.21x = 16,530.91 × 3,625.79
4. Step 4: Simplify right side
   11,019.21x = 59,937,573.14
5. Step 5: Solve for x
   x = 59,937,573.14/11,019.21
6. Step 6: Final answer
   x = 5,439.37