Finding the Fourth Proportional to 55,991.70, 83,744.55 and 50,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,991.70 : 83,744.55 = 50,111.10 : x
2. Step 2: Convert to fraction form
   55,991.70/83,744.55 = 50,111.10/x
3. Step 3: Cross multiply
   55,991.70x = 83,744.55 × 50,111.10
4. Step 4: Simplify right side
   55,991.70x = 4,196,531,519.51
5. Step 5: Solve for x
   x = 4,196,531,519.51/55,991.70
6. Step 6: Final answer
   x = 74,949.17