Finding the Fourth Proportional to 159,049.98, 219,483.41 and 87,429.49

Step by Step Solution

1. Step 1: Write the proportion equation
   159,049.98 : 219,483.41 = 87,429.49 : x
2. Step 2: Convert to fraction form
   159,049.98/219,483.41 = 87,429.49/x
3. Step 3: Cross multiply
   159,049.98x = 219,483.41 × 87,429.49
4. Step 4: Simplify right side
   159,049.98x = 19,189,321,613.90
5. Step 5: Solve for x
   x = 19,189,321,613.90/159,049.98
6. Step 6: Final answer
   x = 120,649.63