Finding the Fourth Proportional to 290,114.34, 400,356.72 and 162,789.63

Step by Step Solution

1. Step 1: Write the proportion equation
   290,114.34 : 400,356.72 = 162,789.63 : x
2. Step 2: Convert to fraction form
   290,114.34/400,356.72 = 162,789.63/x
3. Step 3: Cross multiply
   290,114.34x = 400,356.72 × 162,789.63
4. Step 4: Simplify right side
   290,114.34x = 65,173,922,316.81
5. Step 5: Solve for x
   x = 65,173,922,316.81/290,114.34
6. Step 6: Final answer
   x = 224,649.09