Finding the Fourth Proportional to 47,621.79, 71,447.56 and 28,667.18

Step by Step Solution

1. Step 1: Write the proportion equation
   47,621.79 : 71,447.56 = 28,667.18 : x
2. Step 2: Convert to fraction form
   47,621.79/71,447.56 = 28,667.18/x
3. Step 3: Cross multiply
   47,621.79x = 71,447.56 × 28,667.18
4. Step 4: Simplify right side
   47,621.79x = 2,048,200,170.03
5. Step 5: Solve for x
   x = 2,048,200,170.03/47,621.79
6. Step 6: Final answer
   x = 43,009.73