Finding the Fourth Proportional to 10,407.80, 15,614.42 and 3,012.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,407.80 : 15,614.42 = 3,012.83 : x
2. Step 2: Convert to fraction form
   10,407.80/15,614.42 = 3,012.83/x
3. Step 3: Cross multiply
   10,407.80x = 15,614.42 × 3,012.83
4. Step 4: Simplify right side
   10,407.80x = 47,043,499.87
5. Step 5: Solve for x
   x = 47,043,499.87/10,407.80
6. Step 6: Final answer
   x = 4,520.03