Finding the Fourth Proportional to 297,185.34, 409,636.36 and 243,375.42

Step by Step Solution

1. Step 1: Write the proportion equation
   297,185.34 : 409,636.36 = 243,375.42 : x
2. Step 2: Convert to fraction form
   297,185.34/409,636.36 = 243,375.42/x
3. Step 3: Cross multiply
   297,185.34x = 409,636.36 × 243,375.42
4. Step 4: Simplify right side
   297,185.34x = 99,695,421,162.27
5. Step 5: Solve for x
   x = 99,695,421,162.27/297,185.34
6. Step 6: Final answer
   x = 335,465.47