Finding the Fourth Proportional to 14,015.82, 19,341.74 and 7,642.80

Step by Step Solution

1. Step 1: Write the proportion equation
   14,015.82 : 19,341.74 = 7,642.80 : x
2. Step 2: Convert to fraction form
   14,015.82/19,341.74 = 7,642.80/x
3. Step 3: Cross multiply
   14,015.82x = 19,341.74 × 7,642.80
4. Step 4: Simplify right side
   14,015.82x = 147,825,050.47
5. Step 5: Solve for x
   x = 147,825,050.47/14,015.82
6. Step 6: Final answer
   x = 10,547.01