Finding the Fourth Proportional to 309,461.42, 464,216.72 and 131,969.94

Step by Step Solution

1. Step 1: Write the proportion equation
   309,461.42 : 464,216.72 = 131,969.94 : x
2. Step 2: Convert to fraction form
   309,461.42/464,216.72 = 131,969.94/x
3. Step 3: Cross multiply
   309,461.42x = 464,216.72 × 131,969.94
4. Step 4: Simplify right side
   309,461.42x = 61,262,652,025.55
5. Step 5: Solve for x
   x = 61,262,652,025.55/309,461.42
6. Step 6: Final answer
   x = 197,965.40