Finding the Fourth Proportional to 15,735.15, 21,715.52 and 8,662.01

Step by Step Solution

1. Step 1: Write the proportion equation
   15,735.15 : 21,715.52 = 8,662.01 : x
2. Step 2: Convert to fraction form
   15,735.15/21,715.52 = 8,662.01/x
3. Step 3: Cross multiply
   15,735.15x = 21,715.52 × 8,662.01
4. Step 4: Simplify right side
   15,735.15x = 188,099,899.51
5. Step 5: Solve for x
   x = 188,099,899.51/15,735.15
6. Step 6: Final answer
   x = 11,954.12