Finding the Fourth Proportional to 424,108.31, 636,162.06 and 108,564.71

Step by Step Solution

1. Step 1: Write the proportion equation
   424,108.31 : 636,162.06 = 108,564.71 : x
2. Step 2: Convert to fraction form
   424,108.31/636,162.06 = 108,564.71/x
3. Step 3: Cross multiply
   424,108.31x = 636,162.06 × 108,564.71
4. Step 4: Simplify right side
   424,108.31x = 69,064,751,147.31
5. Step 5: Solve for x
   x = 69,064,751,147.31/424,108.31
6. Step 6: Final answer
   x = 162,846.96