Finding the Fourth Proportional to 10,921.54, 15,071.69 and 5,953.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,921.54 : 15,071.69 = 5,953.54 : x
2. Step 2: Convert to fraction form
   10,921.54/15,071.69 = 5,953.54/x
3. Step 3: Cross multiply
   10,921.54x = 15,071.69 × 5,953.54
4. Step 4: Simplify right side
   10,921.54x = 89,729,909.28
5. Step 5: Solve for x
   x = 89,729,909.28/10,921.54
6. Step 6: Final answer
   x = 8,215.87