Finding the Fourth Proportional to 279,879.54, 386,222.31 and 152,552.34

Step by Step Solution

1. Step 1: Write the proportion equation
   279,879.54 : 386,222.31 = 152,552.34 : x
2. Step 2: Convert to fraction form
   279,879.54/386,222.31 = 152,552.34/x
3. Step 3: Cross multiply
   279,879.54x = 386,222.31 × 152,552.34
4. Step 4: Simplify right side
   279,879.54x = 58,919,117,150.71
5. Step 5: Solve for x
   x = 58,919,117,150.71/279,879.54
6. Step 6: Final answer
   x = 210,515.99