Finding the Fourth Proportional to 10,920.89, 15,076.56 and 7,354.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,920.89 : 15,076.56 = 7,354.61 : x
2. Step 2: Convert to fraction form
   10,920.89/15,076.56 = 7,354.61/x
3. Step 3: Cross multiply
   10,920.89x = 15,076.56 × 7,354.61
4. Step 4: Simplify right side
   10,920.89x = 110,882,218.94
5. Step 5: Solve for x
   x = 110,882,218.94/10,920.89
6. Step 6: Final answer
   x = 10,153.22