Finding the Fourth Proportional to 47,150.56, 70,720.56 and 12,091.04

Step by Step Solution

1. Step 1: Write the proportion equation
   47,150.56 : 70,720.56 = 12,091.04 : x
2. Step 2: Convert to fraction form
   47,150.56/70,720.56 = 12,091.04/x
3. Step 3: Cross multiply
   47,150.56x = 70,720.56 × 12,091.04
4. Step 4: Simplify right side
   47,150.56x = 855,085,119.78
5. Step 5: Solve for x
   x = 855,085,119.78/47,150.56
6. Step 6: Final answer
   x = 18,135.21