Finding the Fourth Proportional to 14,018.67, 19,345.23 and 7,731.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,018.67 : 19,345.23 = 7,731.05 : x
2. Step 2: Convert to fraction form
   14,018.67/19,345.23 = 7,731.05/x
3. Step 3: Cross multiply
   14,018.67x = 19,345.23 × 7,731.05
4. Step 4: Simplify right side
   14,018.67x = 149,558,843.67
5. Step 5: Solve for x
   x = 149,558,843.67/14,018.67
6. Step 6: Final answer
   x = 10,668.55