Finding the Fourth Proportional to 21,826.58, 32,711.78 and 19,003.86

Step by Step Solution

1. Step 1: Write the proportion equation
   21,826.58 : 32,711.78 = 19,003.86 : x
2. Step 2: Convert to fraction form
   21,826.58/32,711.78 = 19,003.86/x
3. Step 3: Cross multiply
   21,826.58x = 32,711.78 × 19,003.86
4. Step 4: Simplify right side
   21,826.58x = 621,650,134.98
5. Step 5: Solve for x
   x = 621,650,134.98/21,826.58
6. Step 6: Final answer
   x = 28,481.34