Finding the Fourth Proportional to 13,522.72, 18,663.12 and 7,934.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,522.72 : 18,663.12 = 7,934.24 : x
2. Step 2: Convert to fraction form
   13,522.72/18,663.12 = 7,934.24/x
3. Step 3: Cross multiply
   13,522.72x = 18,663.12 × 7,934.24
4. Step 4: Simplify right side
   13,522.72x = 148,077,673.23
5. Step 5: Solve for x
   x = 148,077,673.23/13,522.72
6. Step 6: Final answer
   x = 10,950.29