Finding the Fourth Proportional to 21,442.90, 32,168.15 and 7,401.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,442.90 : 32,168.15 = 7,401.82 : x
2. Step 2: Convert to fraction form
   21,442.90/32,168.15 = 7,401.82/x
3. Step 3: Cross multiply
   21,442.90x = 32,168.15 × 7,401.82
4. Step 4: Simplify right side
   21,442.90x = 238,102,856.03
5. Step 5: Solve for x
   x = 238,102,856.03/21,442.90
6. Step 6: Final answer
   x = 11,104.04