Finding the Fourth Proportional to 279,795.15, 386,117.73 and 152,470.71

Step by Step Solution

1. Step 1: Write the proportion equation
   279,795.15 : 386,117.73 = 152,470.71 : x
2. Step 2: Convert to fraction form
   279,795.15/386,117.73 = 152,470.71/x
3. Step 3: Cross multiply
   279,795.15x = 386,117.73 × 152,470.71
4. Step 4: Simplify right side
   279,795.15x = 58,871,644,436.69
5. Step 5: Solve for x
   x = 58,871,644,436.69/279,795.15
6. Step 6: Final answer
   x = 210,409.81