Finding the Fourth Proportional to 30,520.26, 42,112.71 and 19,196.46

Step by Step Solution

1. Step 1: Write the proportion equation
   30,520.26 : 42,112.71 = 19,196.46 : x
2. Step 2: Convert to fraction form
   30,520.26/42,112.71 = 19,196.46/x
3. Step 3: Cross multiply
   30,520.26x = 42,112.71 × 19,196.46
4. Step 4: Simplify right side
   30,520.26x = 808,414,953.01
5. Step 5: Solve for x
   x = 808,414,953.01/30,520.26
6. Step 6: Final answer
   x = 26,487.81