Finding the Fourth Proportional to 12,574.82, 18,870.16 and 7,031.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,574.82 : 18,870.16 = 7,031.80 : x
2. Step 2: Convert to fraction form
   12,574.82/18,870.16 = 7,031.80/x
3. Step 3: Cross multiply
   12,574.82x = 18,870.16 × 7,031.80
4. Step 4: Simplify right side
   12,574.82x = 132,691,191.09
5. Step 5: Solve for x
   x = 132,691,191.09/12,574.82
6. Step 6: Final answer
   x = 10,552.13