Finding the Fourth Proportional to 76,944.55, 106,188.81 and 42,959.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,944.55 : 106,188.81 = 42,959.72 : x
2. Step 2: Convert to fraction form
   76,944.55/106,188.81 = 42,959.72/x
3. Step 3: Cross multiply
   76,944.55x = 106,188.81 × 42,959.72
4. Step 4: Simplify right side
   76,944.55x = 4,561,841,544.73
5. Step 5: Solve for x
   x = 4,561,841,544.73/76,944.55
6. Step 6: Final answer
   x = 59,287.39