Finding the Fourth Proportional to 404,841.72, 607,263.30 and 105,321.82

Step by Step Solution

1. Step 1: Write the proportion equation
   404,841.72 : 607,263.30 = 105,321.82 : x
2. Step 2: Convert to fraction form
   404,841.72/607,263.30 = 105,321.82/x
3. Step 3: Cross multiply
   404,841.72x = 607,263.30 × 105,321.82
4. Step 4: Simplify right side
   404,841.72x = 63,958,075,891.88
5. Step 5: Solve for x
   x = 63,958,075,891.88/404,841.72
6. Step 6: Final answer
   x = 157,982.92