Finding the Fourth Proportional to 159,061.82, 219,509.54 and 86,469.62

Step by Step Solution

1. Step 1: Write the proportion equation
   159,061.82 : 219,509.54 = 86,469.62 : x
2. Step 2: Convert to fraction form
   159,061.82/219,509.54 = 86,469.62/x
3. Step 3: Cross multiply
   159,061.82x = 219,509.54 × 86,469.62
4. Step 4: Simplify right side
   159,061.82x = 18,980,906,510.17
5. Step 5: Solve for x
   x = 18,980,906,510.17/159,061.82
6. Step 6: Final answer
   x = 119,330.37