Finding the Fourth Proportional to 21,949.58, 32,929.61 and 7,158.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,949.58 : 32,929.61 = 7,158.51 : x
2. Step 2: Convert to fraction form
   21,949.58/32,929.61 = 7,158.51/x
3. Step 3: Cross multiply
   21,949.58x = 32,929.61 × 7,158.51
4. Step 4: Simplify right side
   21,949.58x = 235,726,906.69
5. Step 5: Solve for x
   x = 235,726,906.69/21,949.58
6. Step 6: Final answer
   x = 10,739.47