Finding the Fourth Proportional to 10,922.67, 16,356.20 and 7,219.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,922.67 : 16,356.20 = 7,219.35 : x
2. Step 2: Convert to fraction form
   10,922.67/16,356.20 = 7,219.35/x
3. Step 3: Cross multiply
   10,922.67x = 16,356.20 × 7,219.35
4. Step 4: Simplify right side
   10,922.67x = 118,081,096.37
5. Step 5: Solve for x
   x = 118,081,096.37/10,922.67
6. Step 6: Final answer
   x = 10,810.64