Finding the Fourth Proportional to 280,162.56, 386,625.24 and 152,840.82

Step by Step Solution

1. Step 1: Write the proportion equation
   280,162.56 : 386,625.24 = 152,840.82 : x
2. Step 2: Convert to fraction form
   280,162.56/386,625.24 = 152,840.82/x
3. Step 3: Cross multiply
   280,162.56x = 386,625.24 × 152,840.82
4. Step 4: Simplify right side
   280,162.56x = 59,092,118,714.30
5. Step 5: Solve for x
   x = 59,092,118,714.30/280,162.56
6. Step 6: Final answer
   x = 210,920.83