Finding the Fourth Proportional to 92,775.98, 139,049.90 and 42,786.68

Step by Step Solution

1. Step 1: Write the proportion equation
   92,775.98 : 139,049.90 = 42,786.68 : x
2. Step 2: Convert to fraction form
   92,775.98/139,049.90 = 42,786.68/x
3. Step 3: Cross multiply
   92,775.98x = 139,049.90 × 42,786.68
4. Step 4: Simplify right side
   92,775.98x = 5,949,483,575.33
5. Step 5: Solve for x
   x = 5,949,483,575.33/92,775.98
6. Step 6: Final answer
   x = 64,127.41