Finding the Fourth Proportional to 47,251.31, 70,877.27 and 12,191.27

Step by Step Solution

1. Step 1: Write the proportion equation
   47,251.31 : 70,877.27 = 12,191.27 : x
2. Step 2: Convert to fraction form
   47,251.31/70,877.27 = 12,191.27/x
3. Step 3: Cross multiply
   47,251.31x = 70,877.27 × 12,191.27
4. Step 4: Simplify right side
   47,251.31x = 864,084,143.10
5. Step 5: Solve for x
   x = 864,084,143.10/47,251.31
6. Step 6: Final answer
   x = 18,286.99