Finding the Fourth Proportional to 9,410.98, 12,987.15 and 5,219.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.98 : 12,987.15 = 5,219.23 : x
2. Step 2: Convert to fraction form
   9,410.98/12,987.15 = 5,219.23/x
3. Step 3: Cross multiply
   9,410.98x = 12,987.15 × 5,219.23
4. Step 4: Simplify right side
   9,410.98x = 67,782,922.89
5. Step 5: Solve for x
   x = 67,782,922.89/9,410.98
6. Step 6: Final answer
   x = 7,202.54