Finding the Fourth Proportional to 8,019.19, 12,031.22 and 3,635.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,019.19 : 12,031.22 = 3,635.47 : x
2. Step 2: Convert to fraction form
   8,019.19/12,031.22 = 3,635.47/x
3. Step 3: Cross multiply
   8,019.19x = 12,031.22 × 3,635.47
4. Step 4: Simplify right side
   8,019.19x = 43,739,139.37
5. Step 5: Solve for x
   x = 43,739,139.37/8,019.19
6. Step 6: Final answer
   x = 5,454.31