Finding the Fourth Proportional to 42,488.25, 63,732.52 and 19,087.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,488.25 : 63,732.52 = 19,087.35 : x
2. Step 2: Convert to fraction form
   42,488.25/63,732.52 = 19,087.35/x
3. Step 3: Cross multiply
   42,488.25x = 63,732.52 × 19,087.35
4. Step 4: Simplify right side
   42,488.25x = 1,216,484,700.48
5. Step 5: Solve for x
   x = 1,216,484,700.48/42,488.25
6. Step 6: Final answer
   x = 28,631.09