Finding the Fourth Proportional to 47,162.88, 70,738.56 and 12,102.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,162.88 : 70,738.56 = 12,102.72 : x
2. Step 2: Convert to fraction form
   47,162.88/70,738.56 = 12,102.72/x
3. Step 3: Cross multiply
   47,162.88x = 70,738.56 × 12,102.72
4. Step 4: Simplify right side
   47,162.88x = 856,128,984.88
5. Step 5: Solve for x
   x = 856,128,984.88/47,162.88
6. Step 6: Final answer
   x = 18,152.60