Finding the Fourth Proportional to 131,700.45, 181,745.89 and 71,271

Step by Step Solution

1. Step 1: Write the proportion equation
   131,700.45 : 181,745.89 = 71,271 : x
2. Step 2: Convert to fraction form
   131,700.45/181,745.89 = 71,271/x
3. Step 3: Cross multiply
   131,700.45x = 181,745.89 × 71,271
4. Step 4: Simplify right side
   131,700.45x = 12,953,211,326.19
5. Step 5: Solve for x
   x = 12,953,211,326.19/131,700.45
6. Step 6: Final answer
   x = 98,353.58