Finding the Fourth Proportional to 21,445.54, 32,162.16 and 7,401.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,445.54 : 32,162.16 = 7,401.92 : x
2. Step 2: Convert to fraction form
   21,445.54/32,162.16 = 7,401.92/x
3. Step 3: Cross multiply
   21,445.54x = 32,162.16 × 7,401.92
4. Step 4: Simplify right side
   21,445.54x = 238,061,735.35
5. Step 5: Solve for x
   x = 238,061,735.35/21,445.54
6. Step 6: Final answer
   x = 11,100.76