Finding the Fourth Proportional to 8,914.96, 12,302.58 and 5,380.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,914.96 : 12,302.58 = 5,380.12 : x
2. Step 2: Convert to fraction form
   8,914.96/12,302.58 = 5,380.12/x
3. Step 3: Cross multiply
   8,914.96x = 12,302.58 × 5,380.12
4. Step 4: Simplify right side
   8,914.96x = 66,189,356.71
5. Step 5: Solve for x
   x = 66,189,356.71/8,914.96
6. Step 6: Final answer
   x = 7,424.53