Finding the Fourth Proportional to 361,150,870.55, 498,391,130.18 and 196,139,621.03

Step by Step Solution

1. Step 1: Write the proportion equation
   361,150,870.55 : 498,391,130.18 = 196,139,621.03 : x
2. Step 2: Convert to fraction form
   361,150,870.55/498,391,130.18 = 196,139,621.03/x
3. Step 3: Cross multiply
   361,150,870.55x = 498,391,130.18 × 196,139,621.03
4. Step 4: Simplify right side
   361,150,870.55x = 97,754,247,396,216,992
5. Step 5: Solve for x
   x = 97,754,247,396,216,992/361,150,870.55
6. Step 6: Final answer
   x = 270,674,267.65