Finding the Fourth Proportional to 8,499.38, 12,746.61 and 3,570.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.38 : 12,746.61 = 3,570.12 : x
2. Step 2: Convert to fraction form
   8,499.38/12,746.61 = 3,570.12/x
3. Step 3: Cross multiply
   8,499.38x = 12,746.61 × 3,570.12
4. Step 4: Simplify right side
   8,499.38x = 45,506,927.29
5. Step 5: Solve for x
   x = 45,506,927.29/8,499.38
6. Step 6: Final answer
   x = 5,354.15