Finding the Fourth Proportional to 9,410.88, 12,987.60 and 5,219.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.88 : 12,987.60 = 5,219.52 : x
2. Step 2: Convert to fraction form
   9,410.88/12,987.60 = 5,219.52/x
3. Step 3: Cross multiply
   9,410.88x = 12,987.60 × 5,219.52
4. Step 4: Simplify right side
   9,410.88x = 67,789,037.95
5. Step 5: Solve for x
   x = 67,789,037.95/9,410.88
6. Step 6: Final answer
   x = 7,203.26