Finding the Fourth Proportional to 632,141.72, 948,213.49 and 258,164.72

Step by Step Solution

1. Step 1: Write the proportion equation
   632,141.72 : 948,213.49 = 258,164.72 : x
2. Step 2: Convert to fraction form
   632,141.72/948,213.49 = 258,164.72/x
3. Step 3: Cross multiply
   632,141.72x = 948,213.49 × 258,164.72
4. Step 4: Simplify right side
   632,141.72x = 244,795,268,799.45
5. Step 5: Solve for x
   x = 244,795,268,799.45/632,141.72
6. Step 6: Final answer
   x = 387,247.45