Finding the Fourth Proportional to 85,933.94, 128,884.20 and 43,227.98

Step by Step Solution

1. Step 1: Write the proportion equation
   85,933.94 : 128,884.20 = 43,227.98 : x
2. Step 2: Convert to fraction form
   85,933.94/128,884.20 = 43,227.98/x
3. Step 3: Cross multiply
   85,933.94x = 128,884.20 × 43,227.98
4. Step 4: Simplify right side
   85,933.94x = 5,571,403,619.92
5. Step 5: Solve for x
   x = 5,571,403,619.92/85,933.94
6. Step 6: Final answer
   x = 64,833.56