Finding the Fourth Proportional to 76,797.05, 105,967.08 and 42,798.09

Step by Step Solution

1. Step 1: Write the proportion equation
   76,797.05 : 105,967.08 = 42,798.09 : x
2. Step 2: Convert to fraction form
   76,797.05/105,967.08 = 42,798.09/x
3. Step 3: Cross multiply
   76,797.05x = 105,967.08 × 42,798.09
4. Step 4: Simplify right side
   76,797.05x = 4,535,188,626.88
5. Step 5: Solve for x
   x = 4,535,188,626.88/76,797.05
6. Step 6: Final answer
   x = 59,054.20