Finding the Fourth Proportional to 42,380.73, 63,591.74 and 17,428.27

Step by Step Solution

1. Step 1: Write the proportion equation
   42,380.73 : 63,591.74 = 17,428.27 : x
2. Step 2: Convert to fraction form
   42,380.73/63,591.74 = 17,428.27/x
3. Step 3: Cross multiply
   42,380.73x = 63,591.74 × 17,428.27
4. Step 4: Simplify right side
   42,380.73x = 1,108,294,014.49
5. Step 5: Solve for x
   x = 1,108,294,014.49/42,380.73
6. Step 6: Final answer
   x = 26,150.89