Finding the Fourth Proportional to 76,786.46, 105,967.06 and 42,798.44

Step by Step Solution

1. Step 1: Write the proportion equation
   76,786.46 : 105,967.06 = 42,798.44 : x
2. Step 2: Convert to fraction form
   76,786.46/105,967.06 = 42,798.44/x
3. Step 3: Cross multiply
   76,786.46x = 105,967.06 × 42,798.44
4. Step 4: Simplify right side
   76,786.46x = 4,535,224,859.39
5. Step 5: Solve for x
   x = 4,535,224,859.39/76,786.46
6. Step 6: Final answer
   x = 59,062.82