Finding the Fourth Proportional to 21,402.78, 32,066.08 and 18,250.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,402.78 : 32,066.08 = 18,250.81 : x
2. Step 2: Convert to fraction form
   21,402.78/32,066.08 = 18,250.81/x
3. Step 3: Cross multiply
   21,402.78x = 32,066.08 × 18,250.81
4. Step 4: Simplify right side
   21,402.78x = 585,231,996.42
5. Step 5: Solve for x
   x = 585,231,996.42/21,402.78
6. Step 6: Final answer
   x = 27,343.73