Finding the Fourth Proportional to 42,379.35, 63,579.31 and 12,795.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,379.35 : 63,579.31 = 12,795.42 : x
2. Step 2: Convert to fraction form
   42,379.35/63,579.31 = 12,795.42/x
3. Step 3: Cross multiply
   42,379.35x = 63,579.31 × 12,795.42
4. Step 4: Simplify right side
   42,379.35x = 813,523,974.76
5. Step 5: Solve for x
   x = 813,523,974.76/42,379.35
6. Step 6: Final answer
   x = 19,196.24