Finding the Fourth Proportional to 10,964.79, 15,131.30 and 5,928.95

Step by Step Solution

1. Step 1: Write the proportion equation
   10,964.79 : 15,131.30 = 5,928.95 : x
2. Step 2: Convert to fraction form
   10,964.79/15,131.30 = 5,928.95/x
3. Step 3: Cross multiply
   10,964.79x = 15,131.30 × 5,928.95
4. Step 4: Simplify right side
   10,964.79x = 89,712,615.83
5. Step 5: Solve for x
   x = 89,712,615.83/10,964.79
6. Step 6: Final answer
   x = 8,181.88