Finding the Fourth Proportional to 42,271.39, 63,419.43 and 18,892.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,271.39 : 63,419.43 = 18,892.36 : x
2. Step 2: Convert to fraction form
   42,271.39/63,419.43 = 18,892.36/x
3. Step 3: Cross multiply
   42,271.39x = 63,419.43 × 18,892.36
4. Step 4: Simplify right side
   42,271.39x = 1,198,142,291.00
5. Step 5: Solve for x
   x = 1,198,142,291.00/42,271.39
6. Step 6: Final answer
   x = 28,344.05