Finding the Fourth Proportional to 23,109.81, 34,661.24 and 7,312.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,109.81 : 34,661.24 = 7,312.79 : x
2. Step 2: Convert to fraction form
   23,109.81/34,661.24 = 7,312.79/x
3. Step 3: Cross multiply
   23,109.81x = 34,661.24 × 7,312.79
4. Step 4: Simplify right side
   23,109.81x = 253,470,212.98
5. Step 5: Solve for x
   x = 253,470,212.98/23,109.81
6. Step 6: Final answer
   x = 10,968.08