Finding the Fourth Proportional to 235,345.82, 353,015.69 and 57,854.37

Step by Step Solution

1. Step 1: Write the proportion equation
   235,345.82 : 353,015.69 = 57,854.37 : x
2. Step 2: Convert to fraction form
   235,345.82/353,015.69 = 57,854.37/x
3. Step 3: Cross multiply
   235,345.82x = 353,015.69 × 57,854.37
4. Step 4: Simplify right side
   235,345.82x = 20,423,500,345.07
5. Step 5: Solve for x
   x = 20,423,500,345.07/235,345.82
6. Step 6: Final answer
   x = 86,780.81