Finding the Fourth Proportional to 249,113,506.73, 343,787,083.31 and 143,267,004.72

Step by Step Solution

1. Step 1: Write the proportion equation
   249,113,506.73 : 343,787,083.31 = 143,267,004.72 : x
2. Step 2: Convert to fraction form
   249,113,506.73/343,787,083.31 = 143,267,004.72/x
3. Step 3: Cross multiply
   249,113,506.73x = 343,787,083.31 × 143,267,004.72
4. Step 4: Simplify right side
   249,113,506.73x = 49,253,345,687,606,968
5. Step 5: Solve for x
   x = 49,253,345,687,606,968/249,113,506.73
6. Step 6: Final answer
   x = 197,714,472.95