Finding the Fourth Proportional to 22,661.29, 33,992.34 and 7,870.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,661.29 : 33,992.34 = 7,870.69 : x
2. Step 2: Convert to fraction form
   22,661.29/33,992.34 = 7,870.69/x
3. Step 3: Cross multiply
   22,661.29x = 33,992.34 × 7,870.69
4. Step 4: Simplify right side
   22,661.29x = 267,543,170.51
5. Step 5: Solve for x
   x = 267,543,170.51/22,661.29
6. Step 6: Final answer
   x = 11,806.18