Finding the Fourth Proportional to 404,336.34, 606,276.90 and 134,319.94

Step by Step Solution

1. Step 1: Write the proportion equation
   404,336.34 : 606,276.90 = 134,319.94 : x
2. Step 2: Convert to fraction form
   404,336.34/606,276.90 = 134,319.94/x
3. Step 3: Cross multiply
   404,336.34x = 606,276.90 × 134,319.94
4. Step 4: Simplify right side
   404,336.34x = 81,435,075,315.69
5. Step 5: Solve for x
   x = 81,435,075,315.69/404,336.34
6. Step 6: Final answer
   x = 201,404.29