Finding the Fourth Proportional to 131,621.03, 181,636.83 and 71,191.49

Step by Step Solution

1. Step 1: Write the proportion equation
   131,621.03 : 181,636.83 = 71,191.49 : x
2. Step 2: Convert to fraction form
   131,621.03/181,636.83 = 71,191.49/x
3. Step 3: Cross multiply
   131,621.03x = 181,636.83 × 71,191.49
4. Step 4: Simplify right side
   131,621.03x = 12,930,996,680.10
5. Step 5: Solve for x
   x = 12,930,996,680.10/131,621.03
6. Step 6: Final answer
   x = 98,244.15