Finding the Fourth Proportional to 101,054.66, 139,458.78 and 55,116.79

Step by Step Solution

1. Step 1: Write the proportion equation
   101,054.66 : 139,458.78 = 55,116.79 : x
2. Step 2: Convert to fraction form
   101,054.66/139,458.78 = 55,116.79/x
3. Step 3: Cross multiply
   101,054.66x = 139,458.78 × 55,116.79
4. Step 4: Simplify right side
   101,054.66x = 7,686,519,942.27
5. Step 5: Solve for x
   x = 7,686,519,942.27/101,054.66
6. Step 6: Final answer
   x = 76,063.00