Finding the Fourth Proportional to 21,059.42, 29,066.56 and 14,361.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,059.42 : 29,066.56 = 14,361.06 : x
2. Step 2: Convert to fraction form
   21,059.42/29,066.56 = 14,361.06/x
3. Step 3: Cross multiply
   21,059.42x = 29,066.56 × 14,361.06
4. Step 4: Simplify right side
   21,059.42x = 417,426,612.15
5. Step 5: Solve for x
   x = 417,426,612.15/21,059.42
6. Step 6: Final answer
   x = 19,821.37