Finding the Fourth Proportional to 219,115.98, 302,393.88 and 123,587.82

Step by Step Solution

1. Step 1: Write the proportion equation
   219,115.98 : 302,393.88 = 123,587.82 : x
2. Step 2: Convert to fraction form
   219,115.98/302,393.88 = 123,587.82/x
3. Step 3: Cross multiply
   219,115.98x = 302,393.88 × 123,587.82
4. Step 4: Simplify right side
   219,115.98x = 37,372,200,410.54
5. Step 5: Solve for x
   x = 37,372,200,410.54/219,115.98
6. Step 6: Final answer
   x = 170,558.99