Finding the Fourth Proportional to 158,611.92, 218,884.59 and 86,993.34

Step by Step Solution

1. Step 1: Write the proportion equation
   158,611.92 : 218,884.59 = 86,993.34 : x
2. Step 2: Convert to fraction form
   158,611.92/218,884.59 = 86,993.34/x
3. Step 3: Cross multiply
   158,611.92x = 218,884.59 × 86,993.34
4. Step 4: Simplify right side
   158,611.92x = 19,041,501,558.63
5. Step 5: Solve for x
   x = 19,041,501,558.63/158,611.92
6. Step 6: Final answer
   x = 120,050.89