Finding the Fourth Proportional to 15,667.02, 21,620.79 and 8,593.02

Step by Step Solution

1. Step 1: Write the proportion equation
   15,667.02 : 21,620.79 = 8,593.02 : x
2. Step 2: Convert to fraction form
   15,667.02/21,620.79 = 8,593.02/x
3. Step 3: Cross multiply
   15,667.02x = 21,620.79 × 8,593.02
4. Step 4: Simplify right side
   15,667.02x = 185,787,880.89
5. Step 5: Solve for x
   x = 185,787,880.89/15,667.02
6. Step 6: Final answer
   x = 11,858.53