Finding the Fourth Proportional to 357,142.23, 492,865.88 and 196,003.01

Step by Step Solution

1. Step 1: Write the proportion equation
   357,142.23 : 492,865.88 = 196,003.01 : x
2. Step 2: Convert to fraction form
   357,142.23/492,865.88 = 196,003.01/x
3. Step 3: Cross multiply
   357,142.23x = 492,865.88 × 196,003.01
4. Step 4: Simplify right side
   357,142.23x = 96,603,196,258.45
5. Step 5: Solve for x
   x = 96,603,196,258.45/357,142.23
6. Step 6: Final answer
   x = 270,489.42