Finding the Fourth Proportional to 290,100.42, 400,339.80 and 162,776.52

Step by Step Solution

1. Step 1: Write the proportion equation
   290,100.42 : 400,339.80 = 162,776.52 : x
2. Step 2: Convert to fraction form
   290,100.42/400,339.80 = 162,776.52/x
3. Step 3: Cross multiply
   290,100.42x = 400,339.80 × 162,776.52
4. Step 4: Simplify right side
   290,100.42x = 65,165,919,461.50
5. Step 5: Solve for x
   x = 65,165,919,461.50/290,100.42
6. Step 6: Final answer
   x = 224,632.28