Finding the Fourth Proportional to 47,570.64, 71,350.56 and 12,513

Step by Step Solution

1. Step 1: Write the proportion equation
   47,570.64 : 71,350.56 = 12,513 : x
2. Step 2: Convert to fraction form
   47,570.64/71,350.56 = 12,513/x
3. Step 3: Cross multiply
   47,570.64x = 71,350.56 × 12,513
4. Step 4: Simplify right side
   47,570.64x = 892,809,557.28
5. Step 5: Solve for x
   x = 892,809,557.28/47,570.64
6. Step 6: Final answer
   x = 18,768.08