Finding the Fourth Proportional to 42,527.25, 63,793.58 and 12,947.27

Step by Step Solution

1. Step 1: Write the proportion equation
   42,527.25 : 63,793.58 = 12,947.27 : x
2. Step 2: Convert to fraction form
   42,527.25/63,793.58 = 12,947.27/x
3. Step 3: Cross multiply
   42,527.25x = 63,793.58 × 12,947.27
4. Step 4: Simplify right side
   42,527.25x = 825,952,320.82
5. Step 5: Solve for x
   x = 825,952,320.82/42,527.25
6. Step 6: Final answer
   x = 19,421.72