Finding the Fourth Proportional to 10,662.16, 15,886.04 and 10,066

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.16 : 15,886.04 = 10,066 : x
2. Step 2: Convert to fraction form
   10,662.16/15,886.04 = 10,066/x
3. Step 3: Cross multiply
   10,662.16x = 15,886.04 × 10,066
4. Step 4: Simplify right side
   10,662.16x = 159,908,878.64
5. Step 5: Solve for x
   x = 159,908,878.64/10,662.16
6. Step 6: Final answer
   x = 14,997.79