Finding the Fourth Proportional to 10,300.50, 15,453.72 and 5,921.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.50 : 15,453.72 = 5,921.10 : x
2. Step 2: Convert to fraction form
   10,300.50/15,453.72 = 5,921.10/x
3. Step 3: Cross multiply
   10,300.50x = 15,453.72 × 5,921.10
4. Step 4: Simplify right side
   10,300.50x = 91,503,021.49
5. Step 5: Solve for x
   x = 91,503,021.49/10,300.50
6. Step 6: Final answer
   x = 8,883.36