Finding the Fourth Proportional to 286,046.34, 428,903.34 and 108,456.47

Step by Step Solution

1. Step 1: Write the proportion equation
   286,046.34 : 428,903.34 = 108,456.47 : x
2. Step 2: Convert to fraction form
   286,046.34/428,903.34 = 108,456.47/x
3. Step 3: Cross multiply
   286,046.34x = 428,903.34 × 108,456.47
4. Step 4: Simplify right side
   286,046.34x = 46,517,342,227.61
5. Step 5: Solve for x
   x = 46,517,342,227.61/286,046.34
6. Step 6: Final answer
   x = 162,621.70