Finding the Fourth Proportional to 10,642.19, 14,678.42 and 7,050.65

Step by Step Solution

1. Step 1: Write the proportion equation
   10,642.19 : 14,678.42 = 7,050.65 : x
2. Step 2: Convert to fraction form
   10,642.19/14,678.42 = 7,050.65/x
3. Step 3: Cross multiply
   10,642.19x = 14,678.42 × 7,050.65
4. Step 4: Simplify right side
   10,642.19x = 103,492,293.33
5. Step 5: Solve for x
   x = 103,492,293.33/10,642.19
6. Step 6: Final answer
   x = 9,724.72