Finding the Fourth Proportional to 356,361,185.20, 491,847,404.16 and 232,386,628.72

Step by Step Solution

1. Step 1: Write the proportion equation
   356,361,185.20 : 491,847,404.16 = 232,386,628.72 : x
2. Step 2: Convert to fraction form
   356,361,185.20/491,847,404.16 = 232,386,628.72/x
3. Step 3: Cross multiply
   356,361,185.20x = 491,847,404.16 × 232,386,628.72
4. Step 4: Simplify right side
   356,361,185.20x = 114,298,760,097,425,712
5. Step 5: Solve for x
   x = 114,298,760,097,425,712/356,361,185.20
6. Step 6: Final answer
   x = 320,738,522.72