Finding the Fourth Proportional to 42,235.25, 63,352.82 and 19,436.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,235.25 : 63,352.82 = 19,436.80 : x
2. Step 2: Convert to fraction form
   42,235.25/63,352.82 = 19,436.80/x
3. Step 3: Cross multiply
   42,235.25x = 63,352.82 × 19,436.80
4. Step 4: Simplify right side
   42,235.25x = 1,231,376,073.78
5. Step 5: Solve for x
   x = 1,231,376,073.78/42,235.25
6. Step 6: Final answer
   x = 29,155.18