Finding the Fourth Proportional to 636,870.54, 955,152.56 and 187,469.30

Step by Step Solution

1. Step 1: Write the proportion equation
   636,870.54 : 955,152.56 = 187,469.30 : x
2. Step 2: Convert to fraction form
   636,870.54/955,152.56 = 187,469.30/x
3. Step 3: Cross multiply
   636,870.54x = 955,152.56 × 187,469.30
4. Step 4: Simplify right side
   636,870.54x = 179,061,781,816.41
5. Step 5: Solve for x
   x = 179,061,781,816.41/636,870.54
6. Step 6: Final answer
   x = 281,158.84