Finding the Fourth Proportional to 14,142.25, 21,051.70 and 13,932.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,142.25 : 21,051.70 = 13,932.05 : x
2. Step 2: Convert to fraction form
   14,142.25/21,051.70 = 13,932.05/x
3. Step 3: Cross multiply
   14,142.25x = 21,051.70 × 13,932.05
4. Step 4: Simplify right side
   14,142.25x = 293,293,354.78
5. Step 5: Solve for x
   x = 293,293,354.78/14,142.25
6. Step 6: Final answer
   x = 20,738.81