Finding the Fourth Proportional to 179,768.72, 248,080.53 and 99,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   179,768.72 : 248,080.53 = 99,196.18 : x
2. Step 2: Convert to fraction form
   179,768.72/248,080.53 = 99,196.18/x
3. Step 3: Cross multiply
   179,768.72x = 248,080.53 × 99,196.18
4. Step 4: Simplify right side
   179,768.72x = 24,608,640,908.38
5. Step 5: Solve for x
   x = 24,608,640,908.38/179,768.72
6. Step 6: Final answer
   x = 136,890.56