Finding the Fourth Proportional to 21,482.72, 29,648.94 and 12,054.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,482.72 : 29,648.94 = 12,054.32 : x
2. Step 2: Convert to fraction form
   21,482.72/29,648.94 = 12,054.32/x
3. Step 3: Cross multiply
   21,482.72x = 29,648.94 × 12,054.32
4. Step 4: Simplify right side
   21,482.72x = 357,397,810.42
5. Step 5: Solve for x
   x = 357,397,810.42/21,482.72
6. Step 6: Final answer
   x = 16,636.53