Finding the Fourth Proportional to 16,580.50, 22,900.53 and 10,981.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,580.50 : 22,900.53 = 10,981.78 : x
2. Step 2: Convert to fraction form
   16,580.50/22,900.53 = 10,981.78/x
3. Step 3: Cross multiply
   16,580.50x = 22,900.53 × 10,981.78
4. Step 4: Simplify right side
   16,580.50x = 251,488,582.34
5. Step 5: Solve for x
   x = 251,488,582.34/16,580.50
6. Step 6: Final answer
   x = 15,167.73