Finding the Fourth Proportional to 10,959.42, 15,123.96 and 5,991.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,959.42 : 15,123.96 = 5,991.42 : x
2. Step 2: Convert to fraction form
   10,959.42/15,123.96 = 5,991.42/x
3. Step 3: Cross multiply
   10,959.42x = 15,123.96 × 5,991.42
4. Step 4: Simplify right side
   10,959.42x = 90,613,996.42
5. Step 5: Solve for x
   x = 90,613,996.42/10,959.42
6. Step 6: Final answer
   x = 8,268.14