Finding the Fourth Proportional to 81,795.35, 122,758.64 and 42,363.74

Step by Step Solution

1. Step 1: Write the proportion equation
   81,795.35 : 122,758.64 = 42,363.74 : x
2. Step 2: Convert to fraction form
   81,795.35/122,758.64 = 42,363.74/x
3. Step 3: Cross multiply
   81,795.35x = 122,758.64 × 42,363.74
4. Step 4: Simplify right side
   81,795.35x = 5,200,515,361.66
5. Step 5: Solve for x
   x = 5,200,515,361.66/81,795.35
6. Step 6: Final answer
   x = 63,579.59