Finding the Fourth Proportional to 10,964.46, 15,150.99 and 7,815.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,964.46 : 15,150.99 = 7,815.18 : x
2. Step 2: Convert to fraction form
   10,964.46/15,150.99 = 7,815.18/x
3. Step 3: Cross multiply
   10,964.46x = 15,150.99 × 7,815.18
4. Step 4: Simplify right side
   10,964.46x = 118,407,714.03
5. Step 5: Solve for x
   x = 118,407,714.03/10,964.46
6. Step 6: Final answer
   x = 10,799.23