Finding the Fourth Proportional to 101,010.83, 139,395.89 and 55,690.47

Step by Step Solution

1. Step 1: Write the proportion equation
   101,010.83 : 139,395.89 = 55,690.47 : x
2. Step 2: Convert to fraction form
   101,010.83/139,395.89 = 55,690.47/x
3. Step 3: Cross multiply
   101,010.83x = 139,395.89 × 55,690.47
4. Step 4: Simplify right side
   101,010.83x = 7,763,022,769.39
5. Step 5: Solve for x
   x = 7,763,022,769.39/101,010.83
6. Step 6: Final answer
   x = 76,853.37