Finding the Fourth Proportional to 85,386.09, 128,085.29 and 32,795.57

Step by Step Solution

1. Step 1: Write the proportion equation
   85,386.09 : 128,085.29 = 32,795.57 : x
2. Step 2: Convert to fraction form
   85,386.09/128,085.29 = 32,795.57/x
3. Step 3: Cross multiply
   85,386.09x = 128,085.29 × 32,795.57
4. Step 4: Simplify right side
   85,386.09x = 4,200,629,289.76
5. Step 5: Solve for x
   x = 4,200,629,289.76/85,386.09
6. Step 6: Final answer
   x = 49,195.71