Finding the Fourth Proportional to 85,703.25, 128,638.02 and 41,361.24

Step by Step Solution

1. Step 1: Write the proportion equation
   85,703.25 : 128,638.02 = 41,361.24 : x
2. Step 2: Convert to fraction form
   85,703.25/128,638.02 = 41,361.24/x
3. Step 3: Cross multiply
   85,703.25x = 128,638.02 × 41,361.24
4. Step 4: Simplify right side
   85,703.25x = 5,320,628,018.34
5. Step 5: Solve for x
   x = 5,320,628,018.34/85,703.25
6. Step 6: Final answer
   x = 62,081.99