Finding the Fourth Proportional to 10,790.42, 14,889.76 and 7,959.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,790.42 : 14,889.76 = 7,959.34 : x
2. Step 2: Convert to fraction form
   10,790.42/14,889.76 = 7,959.34/x
3. Step 3: Cross multiply
   10,790.42x = 14,889.76 × 7,959.34
4. Step 4: Simplify right side
   10,790.42x = 118,512,662.36
5. Step 5: Solve for x
   x = 118,512,662.36/10,790.42
6. Step 6: Final answer
   x = 10,983.14