Finding the Fourth Proportional to 47,146.56, 70,714.56 and 12,087.04

Step by Step Solution

1. Step 1: Write the proportion equation
   47,146.56 : 70,714.56 = 12,087.04 : x
2. Step 2: Convert to fraction form
   47,146.56/70,714.56 = 12,087.04/x
3. Step 3: Cross multiply
   47,146.56x = 70,714.56 × 12,087.04
4. Step 4: Simplify right side
   47,146.56x = 854,729,715.30
5. Step 5: Solve for x
   x = 854,729,715.30/47,146.56
6. Step 6: Final answer
   x = 18,129.21