Finding the Fourth Proportional to 23,031.27, 31,645.35 and 18,307.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,031.27 : 31,645.35 = 18,307.35 : x
2. Step 2: Convert to fraction form
   23,031.27/31,645.35 = 18,307.35/x
3. Step 3: Cross multiply
   23,031.27x = 31,645.35 × 18,307.35
4. Step 4: Simplify right side
   23,031.27x = 579,342,498.32
5. Step 5: Solve for x
   x = 579,342,498.32/23,031.27
6. Step 6: Final answer
   x = 25,154.60