Finding the Fourth Proportional to 159,065.67, 219,514.82 and 87,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,065.67 : 219,514.82 = 87,447.50 : x
2. Step 2: Convert to fraction form
   159,065.67/219,514.82 = 87,447.50/x
3. Step 3: Cross multiply
   159,065.67x = 219,514.82 × 87,447.50
4. Step 4: Simplify right side
   159,065.67x = 19,196,020,687.14
5. Step 5: Solve for x
   x = 19,196,020,687.14/159,065.67
6. Step 6: Final answer
   x = 120,679.85