Finding the Fourth Proportional to 31,499.94, 47,250.82 and 8,126.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,499.94 : 47,250.82 = 8,126.38 : x
2. Step 2: Convert to fraction form
   31,499.94/47,250.82 = 8,126.38/x
3. Step 3: Cross multiply
   31,499.94x = 47,250.82 × 8,126.38
4. Step 4: Simplify right side
   31,499.94x = 383,977,882.38
5. Step 5: Solve for x
   x = 383,977,882.38/31,499.94
6. Step 6: Final answer
   x = 12,189.80