Finding the Fourth Proportional to 628,380.16, 942,657.72 and 201,928.72

Step by Step Solution

1. Step 1: Write the proportion equation
   628,380.16 : 942,657.72 = 201,928.72 : x
2. Step 2: Convert to fraction form
   628,380.16/942,657.72 = 201,928.72/x
3. Step 3: Cross multiply
   628,380.16x = 942,657.72 × 201,928.72
4. Step 4: Simplify right side
   628,380.16x = 190,349,666,797.72
5. Step 5: Solve for x
   x = 190,349,666,797.72/628,380.16
6. Step 6: Final answer
   x = 302,921.19