Finding the Fourth Proportional to 35,522.78, 49,031.09 and 20,416.98

Step by Step Solution

1. Step 1: Write the proportion equation
   35,522.78 : 49,031.09 = 20,416.98 : x
2. Step 2: Convert to fraction form
   35,522.78/49,031.09 = 20,416.98/x
3. Step 3: Cross multiply
   35,522.78x = 49,031.09 × 20,416.98
4. Step 4: Simplify right side
   35,522.78x = 1,001,066,942.25
5. Step 5: Solve for x
   x = 1,001,066,942.25/35,522.78
6. Step 6: Final answer
   x = 28,180.99