Finding the Fourth Proportional to 11,985.72, 17,958.78 and 7,359

Step by Step Solution

1. Step 1: Write the proportion equation
   11,985.72 : 17,958.78 = 7,359 : x
2. Step 2: Convert to fraction form
   11,985.72/17,958.78 = 7,359/x
3. Step 3: Cross multiply
   11,985.72x = 17,958.78 × 7,359
4. Step 4: Simplify right side
   11,985.72x = 132,158,662.02
5. Step 5: Solve for x
   x = 132,158,662.02/11,985.72
6. Step 6: Final answer
   x = 11,026.34