Finding the Fourth Proportional to 30,775.82, 42,461.19 and 18,826.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,775.82 : 42,461.19 = 18,826.70 : x
2. Step 2: Convert to fraction form
   30,775.82/42,461.19 = 18,826.70/x
3. Step 3: Cross multiply
   30,775.82x = 42,461.19 × 18,826.70
4. Step 4: Simplify right side
   30,775.82x = 799,404,085.77
5. Step 5: Solve for x
   x = 799,404,085.77/30,775.82
6. Step 6: Final answer
   x = 25,975.07