Finding the Fourth Proportional to 52,680.69, 79,012.22 and 17,620.23

Step by Step Solution

1. Step 1: Write the proportion equation
   52,680.69 : 79,012.22 = 17,620.23 : x
2. Step 2: Convert to fraction form
   52,680.69/79,012.22 = 17,620.23/x
3. Step 3: Cross multiply
   52,680.69x = 79,012.22 × 17,620.23
4. Step 4: Simplify right side
   52,680.69x = 1,392,213,401.11
5. Step 5: Solve for x
   x = 1,392,213,401.11/52,680.69
6. Step 6: Final answer
   x = 26,427.39