Finding the Fourth Proportional to 42,377.35, 63,576.31 and 12,793.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,377.35 : 63,576.31 = 12,793.42 : x
2. Step 2: Convert to fraction form
   42,377.35/63,576.31 = 12,793.42/x
3. Step 3: Cross multiply
   42,377.35x = 63,576.31 × 12,793.42
4. Step 4: Simplify right side
   42,377.35x = 813,358,435.88
5. Step 5: Solve for x
   x = 813,358,435.88/42,377.35
6. Step 6: Final answer
   x = 19,193.23