Finding the Fourth Proportional to 159,597.82, 220,242.61 and 87,976.31

Step by Step Solution

1. Step 1: Write the proportion equation
   159,597.82 : 220,242.61 = 87,976.31 : x
2. Step 2: Convert to fraction form
   159,597.82/220,242.61 = 87,976.31/x
3. Step 3: Cross multiply
   159,597.82x = 220,242.61 × 87,976.31
4. Step 4: Simplify right side
   159,597.82x = 19,376,131,141.33
5. Step 5: Solve for x
   x = 19,376,131,141.33/159,597.82
6. Step 6: Final answer
   x = 121,405.99