Finding the Fourth Proportional to 21,460.89, 32,192.78 and 7,422.29

Step by Step Solution

1. Step 1: Write the proportion equation
   21,460.89 : 32,192.78 = 7,422.29 : x
2. Step 2: Convert to fraction form
   21,460.89/32,192.78 = 7,422.29/x
3. Step 3: Cross multiply
   21,460.89x = 32,192.78 × 7,422.29
4. Step 4: Simplify right side
   21,460.89x = 238,944,149.07
5. Step 5: Solve for x
   x = 238,944,149.07/21,460.89
6. Step 6: Final answer
   x = 11,133.93