Finding the Fourth Proportional to 309,459.18, 464,213.34 and 131,967.69

Step by Step Solution

1. Step 1: Write the proportion equation
   309,459.18 : 464,213.34 = 131,967.69 : x
2. Step 2: Convert to fraction form
   309,459.18/464,213.34 = 131,967.69/x
3. Step 3: Cross multiply
   309,459.18x = 464,213.34 × 131,967.69
4. Step 4: Simplify right side
   309,459.18x = 61,261,162,146.98
5. Step 5: Solve for x
   x = 61,261,162,146.98/309,459.18
6. Step 6: Final answer
   x = 197,962.01