Finding the Fourth Proportional to 30,433.41, 42,024.83 and 19,122.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,433.41 : 42,024.83 = 19,122.50 : x
2. Step 2: Convert to fraction form
   30,433.41/42,024.83 = 19,122.50/x
3. Step 3: Cross multiply
   30,433.41x = 42,024.83 × 19,122.50
4. Step 4: Simplify right side
   30,433.41x = 803,619,821.12
5. Step 5: Solve for x
   x = 803,619,821.12/30,433.41
6. Step 6: Final answer
   x = 26,405.84