Finding the Fourth Proportional to 309,648, 427,317.83 and 171,829.76

Step by Step Solution

1. Step 1: Write the proportion equation
   309,648 : 427,317.83 = 171,829.76 : x
2. Step 2: Convert to fraction form
   309,648/427,317.83 = 171,829.76/x
3. Step 3: Cross multiply
   309,648x = 427,317.83 × 171,829.76
4. Step 4: Simplify right side
   309,648x = 73,425,917,176.88
5. Step 5: Solve for x
   x = 73,425,917,176.88/309,648
6. Step 6: Final answer
   x = 237,127.05