Finding the Fourth Proportional to 101,003.06, 139,377.96 and 55,678.70

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.06 : 139,377.96 = 55,678.70 : x
2. Step 2: Convert to fraction form
   101,003.06/139,377.96 = 55,678.70/x
3. Step 3: Cross multiply
   101,003.06x = 139,377.96 × 55,678.70
4. Step 4: Simplify right side
   101,003.06x = 7,760,382,924.56
5. Step 5: Solve for x
   x = 7,760,382,924.56/101,003.06
6. Step 6: Final answer
   x = 76,833.15