Finding the Fourth Proportional to 295,942.82, 443,980.59 and 85,597.10

Step by Step Solution

1. Step 1: Write the proportion equation
   295,942.82 : 443,980.59 = 85,597.10 : x
2. Step 2: Convert to fraction form
   295,942.82/443,980.59 = 85,597.10/x
3. Step 3: Cross multiply
   295,942.82x = 443,980.59 × 85,597.10
4. Step 4: Simplify right side
   295,942.82x = 38,003,450,960.29
5. Step 5: Solve for x
   x = 38,003,450,960.29/295,942.82
6. Step 6: Final answer
   x = 128,414.84