Finding the Fourth Proportional to 404,985.69, 607,099.68 and 180,224.01

Step by Step Solution

1. Step 1: Write the proportion equation
   404,985.69 : 607,099.68 = 180,224.01 : x
2. Step 2: Convert to fraction form
   404,985.69/607,099.68 = 180,224.01/x
3. Step 3: Cross multiply
   404,985.69x = 607,099.68 × 180,224.01
4. Step 4: Simplify right side
   404,985.69x = 109,413,938,799.32
5. Step 5: Solve for x
   x = 109,413,938,799.32/404,985.69
6. Step 6: Final answer
   x = 270,167.42