Finding the Fourth Proportional to 21,575.82, 29,780.22 and 19,333.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,575.82 : 29,780.22 = 19,333.86 : x
2. Step 2: Convert to fraction form
   21,575.82/29,780.22 = 19,333.86/x
3. Step 3: Cross multiply
   21,575.82x = 29,780.22 × 19,333.86
4. Step 4: Simplify right side
   21,575.82x = 575,766,604.25
5. Step 5: Solve for x
   x = 575,766,604.25/21,575.82
6. Step 6: Final answer
   x = 26,685.73