Finding the Fourth Proportional to 9,360.59, 12,919.83 and 5,384

Step by Step Solution

1. Step 1: Write the proportion equation
   9,360.59 : 12,919.83 = 5,384 : x
2. Step 2: Convert to fraction form
   9,360.59/12,919.83 = 5,384/x
3. Step 3: Cross multiply
   9,360.59x = 12,919.83 × 5,384
4. Step 4: Simplify right side
   9,360.59x = 69,560,364.72
5. Step 5: Solve for x
   x = 69,560,364.72/9,360.59
6. Step 6: Final answer
   x = 7,431.19