Finding the Fourth Proportional to 10,415.30, 15,622.49 and 3,019.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,415.30 : 15,622.49 = 3,019.59 : x
2. Step 2: Convert to fraction form
   10,415.30/15,622.49 = 3,019.59/x
3. Step 3: Cross multiply
   10,415.30x = 15,622.49 × 3,019.59
4. Step 4: Simplify right side
   10,415.30x = 47,173,499.48
5. Step 5: Solve for x
   x = 47,173,499.48/10,415.30
6. Step 6: Final answer
   x = 4,529.25