Finding the Fourth Proportional to 10,389.69, 15,587.01 and 2,994.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389.69 : 15,587.01 = 2,994.03 : x
2. Step 2: Convert to fraction form
   10,389.69/15,587.01 = 2,994.03/x
3. Step 3: Cross multiply
   10,389.69x = 15,587.01 × 2,994.03
4. Step 4: Simplify right side
   10,389.69x = 46,667,975.55
5. Step 5: Solve for x
   x = 46,667,975.55/10,389.69
6. Step 6: Final answer
   x = 4,491.76