Finding the Fourth Proportional to 13,066.17, 18,031.58 and 7,959.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.17 : 18,031.58 = 7,959.93 : x
2. Step 2: Convert to fraction form
   13,066.17/18,031.58 = 7,959.93/x
3. Step 3: Cross multiply
   13,066.17x = 18,031.58 × 7,959.93
4. Step 4: Simplify right side
   13,066.17x = 143,530,114.59
5. Step 5: Solve for x
   x = 143,530,114.59/13,066.17
6. Step 6: Final answer
   x = 10,984.87