Finding the Fourth Proportional to 10,388.94, 15,585.69 and 2,993.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.94 : 15,585.69 = 2,993.46 : x
2. Step 2: Convert to fraction form
   10,388.94/15,585.69 = 2,993.46/x
3. Step 3: Cross multiply
   10,388.94x = 15,585.69 × 2,993.46
4. Step 4: Simplify right side
   10,388.94x = 46,655,139.59
5. Step 5: Solve for x
   x = 46,655,139.59/10,388.94
6. Step 6: Final answer
   x = 4,490.85