Finding the Fourth Proportional to 14,109.67, 21,176.18 and 7,091.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,109.67 : 21,176.18 = 7,091.69 : x
2. Step 2: Convert to fraction form
   14,109.67/21,176.18 = 7,091.69/x
3. Step 3: Cross multiply
   14,109.67x = 21,176.18 × 7,091.69
4. Step 4: Simplify right side
   14,109.67x = 150,174,868.49
5. Step 5: Solve for x
   x = 150,174,868.49/14,109.67
6. Step 6: Final answer
   x = 10,643.40