Finding the Fourth Proportional to 296,555.34, 444,877.56 and 86,165.94

Step by Step Solution

1. Step 1: Write the proportion equation
   296,555.34 : 444,877.56 = 86,165.94 : x
2. Step 2: Convert to fraction form
   296,555.34/444,877.56 = 86,165.94/x
3. Step 3: Cross multiply
   296,555.34x = 444,877.56 × 86,165.94
4. Step 4: Simplify right side
   296,555.34x = 38,333,293,142.31
5. Step 5: Solve for x
   x = 38,333,293,142.31/296,555.34
6. Step 6: Final answer
   x = 129,261.85