Finding the Fourth Proportional to 308,009.76, 425,034.72 and 178,928.16

Step by Step Solution

1. Step 1: Write the proportion equation
   308,009.76 : 425,034.72 = 178,928.16 : x
2. Step 2: Convert to fraction form
   308,009.76/425,034.72 = 178,928.16/x
3. Step 3: Cross multiply
   308,009.76x = 425,034.72 × 178,928.16
4. Step 4: Simplify right side
   308,009.76x = 76,050,680,385.72
5. Step 5: Solve for x
   x = 76,050,680,385.72/308,009.76
6. Step 6: Final answer
   x = 246,909.97