Finding the Fourth Proportional to 23,110.71, 34,498.88 and 20,308.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,110.71 : 34,498.88 = 20,308.20 : x
2. Step 2: Convert to fraction form
   23,110.71/34,498.88 = 20,308.20/x
3. Step 3: Cross multiply
   23,110.71x = 34,498.88 × 20,308.20
4. Step 4: Simplify right side
   23,110.71x = 700,610,053.28
5. Step 5: Solve for x
   x = 700,610,053.28/23,110.71
6. Step 6: Final answer
   x = 30,315.38