Finding the Fourth Proportional to 85,424.94, 128,164.82 and 41,054.90

Step by Step Solution

1. Step 1: Write the proportion equation
   85,424.94 : 128,164.82 = 41,054.90 : x
2. Step 2: Convert to fraction form
   85,424.94/128,164.82 = 41,054.90/x
3. Step 3: Cross multiply
   85,424.94x = 128,164.82 × 41,054.90
4. Step 4: Simplify right side
   85,424.94x = 5,261,793,022.52
5. Step 5: Solve for x
   x = 5,261,793,022.52/85,424.94
6. Step 6: Final answer
   x = 61,595.51