Finding the Fourth Proportional to 31,871.59, 47,805.55 and 12,152.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,871.59 : 47,805.55 = 12,152.14 : x
2. Step 2: Convert to fraction form
   31,871.59/47,805.55 = 12,152.14/x
3. Step 3: Cross multiply
   31,871.59x = 47,805.55 × 12,152.14
4. Step 4: Simplify right side
   31,871.59x = 580,939,736.38
5. Step 5: Solve for x
   x = 580,939,736.38/31,871.59
6. Step 6: Final answer
   x = 18,227.51