Finding the Fourth Proportional to 8,913.34, 12,298.53 and 5,328.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.34 : 12,298.53 = 5,328.18 : x
2. Step 2: Convert to fraction form
   8,913.34/12,298.53 = 5,328.18/x
3. Step 3: Cross multiply
   8,913.34x = 12,298.53 × 5,328.18
4. Step 4: Simplify right side
   8,913.34x = 65,528,801.56
5. Step 5: Solve for x
   x = 65,528,801.56/8,913.34
6. Step 6: Final answer
   x = 7,351.77