Finding the Fourth Proportional to 276,309,321.78, 381,340,300.32 and 157,260,858.97

Step by Step Solution

1. Step 1: Write the proportion equation
   276,309,321.78 : 381,340,300.32 = 157,260,858.97 : x
2. Step 2: Convert to fraction form
   276,309,321.78/381,340,300.32 = 157,260,858.97/x
3. Step 3: Cross multiply
   276,309,321.78x = 381,340,300.32 × 157,260,858.97
4. Step 4: Simplify right side
   276,309,321.78x = 59,969,903,188,200,968
5. Step 5: Solve for x
   x = 59,969,903,188,200,968/276,309,321.78
6. Step 6: Final answer
   x = 217,039,015.56