Finding the Fourth Proportional to 162,381,462.72, 243,780,048.24 and 139,498,794.24

Step by Step Solution

1. Step 1: Write the proportion equation
   162,381,462.72 : 243,780,048.24 = 139,498,794.24 : x
2. Step 2: Convert to fraction form
   162,381,462.72/243,780,048.24 = 139,498,794.24/x
3. Step 3: Cross multiply
   162,381,462.72x = 243,780,048.24 × 139,498,794.24
4. Step 4: Simplify right side
   162,381,462.72x = 34,007,022,789,249,036
5. Step 5: Solve for x
   x = 34,007,022,789,249,036/162,381,462.72
6. Step 6: Final answer
   x = 209,426,754.87