Finding the Fourth Proportional to 23,145.69, 34,718.64 and 5,615.51

Step by Step Solution

1. Step 1: Write the proportion equation
   23,145.69 : 34,718.64 = 5,615.51 : x
2. Step 2: Convert to fraction form
   23,145.69/34,718.64 = 5,615.51/x
3. Step 3: Cross multiply
   23,145.69x = 34,718.64 × 5,615.51
4. Step 4: Simplify right side
   23,145.69x = 194,962,696.51
5. Step 5: Solve for x
   x = 194,962,696.51/23,145.69
6. Step 6: Final answer
   x = 8,423.28