Finding the Fourth Proportional to 260,061.73, 390,167.31 and 108,229.25

Step by Step Solution

1. Step 1: Write the proportion equation
   260,061.73 : 390,167.31 = 108,229.25 : x
2. Step 2: Convert to fraction form
   260,061.73/390,167.31 = 108,229.25/x
3. Step 3: Cross multiply
   260,061.73x = 390,167.31 × 108,229.25
4. Step 4: Simplify right side
   260,061.73x = 42,227,515,335.82
5. Step 5: Solve for x
   x = 42,227,515,335.82/260,061.73
6. Step 6: Final answer
   x = 162,374.97