Finding the Fourth Proportional to 8,501.19, 12,756.71 and 3,570.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,501.19 : 12,756.71 = 3,570.40 : x
2. Step 2: Convert to fraction form
   8,501.19/12,756.71 = 3,570.40/x
3. Step 3: Cross multiply
   8,501.19x = 12,756.71 × 3,570.40
4. Step 4: Simplify right side
   8,501.19x = 45,546,557.38
5. Step 5: Solve for x
   x = 45,546,557.38/8,501.19
6. Step 6: Final answer
   x = 5,357.67