Finding the Fourth Proportional to 12,608.02, 18,908.99 and 5,584.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,608.02 : 18,908.99 = 5,584.15 : x
2. Step 2: Convert to fraction form
   12,608.02/18,908.99 = 5,584.15/x
3. Step 3: Cross multiply
   12,608.02x = 18,908.99 × 5,584.15
4. Step 4: Simplify right side
   12,608.02x = 105,590,636.51
5. Step 5: Solve for x
   x = 105,590,636.51/12,608.02
6. Step 6: Final answer
   x = 8,374.88