Finding the Fourth Proportional to 21,385.34, 32,096.47 and 18,894.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,385.34 : 32,096.47 = 18,894.18 : x
2. Step 2: Convert to fraction form
   21,385.34/32,096.47 = 18,894.18/x
3. Step 3: Cross multiply
   21,385.34x = 32,096.47 × 18,894.18
4. Step 4: Simplify right side
   21,385.34x = 606,436,481.54
5. Step 5: Solve for x
   x = 606,436,481.54/21,385.34
6. Step 6: Final answer
   x = 28,357.58