Finding the Fourth Proportional to 158,892.09, 219,270.42 and 87,271.89

Step by Step Solution

1. Step 1: Write the proportion equation
   158,892.09 : 219,270.42 = 87,271.89 : x
2. Step 2: Convert to fraction form
   158,892.09/219,270.42 = 87,271.89/x
3. Step 3: Cross multiply
   158,892.09x = 219,270.42 × 87,271.89
4. Step 4: Simplify right side
   158,892.09x = 19,136,143,974.49
5. Step 5: Solve for x
   x = 19,136,143,974.49/158,892.09
6. Step 6: Final answer
   x = 120,434.84