Finding the Fourth Proportional to 9,411.52, 12,987.96 and 5,219.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.52 : 12,987.96 = 5,219.84 : x
2. Step 2: Convert to fraction form
   9,411.52/12,987.96 = 5,219.84/x
3. Step 3: Cross multiply
   9,411.52x = 12,987.96 × 5,219.84
4. Step 4: Simplify right side
   9,411.52x = 67,795,073.13
5. Step 5: Solve for x
   x = 67,795,073.13/9,411.52
6. Step 6: Final answer
   x = 7,203.41