Finding the Fourth Proportional to 14,018.52, 19,345.72 and 7,731

Step by Step Solution

1. Step 1: Write the proportion equation
   14,018.52 : 19,345.72 = 7,731 : x
2. Step 2: Convert to fraction form
   14,018.52/19,345.72 = 7,731/x
3. Step 3: Cross multiply
   14,018.52x = 19,345.72 × 7,731
4. Step 4: Simplify right side
   14,018.52x = 149,561,761.32
5. Step 5: Solve for x
   x = 149,561,761.32/14,018.52
6. Step 6: Final answer
   x = 10,668.87