Finding the Fourth Proportional to 21,590.28, 32,380.56 and 14,091.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,590.28 : 32,380.56 = 14,091.48 : x
2. Step 2: Convert to fraction form
   21,590.28/32,380.56 = 14,091.48/x
3. Step 3: Cross multiply
   21,590.28x = 32,380.56 × 14,091.48
4. Step 4: Simplify right side
   21,590.28x = 456,290,013.63
5. Step 5: Solve for x
   x = 456,290,013.63/21,590.28
6. Step 6: Final answer
   x = 21,134.05