Finding the Fourth Proportional to 21,338.18, 32,012.25 and 7,298.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,338.18 : 32,012.25 = 7,298.31 : x
2. Step 2: Convert to fraction form
   21,338.18/32,012.25 = 7,298.31/x
3. Step 3: Cross multiply
   21,338.18x = 32,012.25 × 7,298.31
4. Step 4: Simplify right side
   21,338.18x = 233,635,416.97
5. Step 5: Solve for x
   x = 233,635,416.97/21,338.18
6. Step 6: Final answer
   x = 10,949.17