Finding the Fourth Proportional to 10,391.58, 15,583.82 and 2,994.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,391.58 : 15,583.82 = 2,994.05 : x
2. Step 2: Convert to fraction form
   10,391.58/15,583.82 = 2,994.05/x
3. Step 3: Cross multiply
   10,391.58x = 15,583.82 × 2,994.05
4. Step 4: Simplify right side
   10,391.58x = 46,658,643.38
5. Step 5: Solve for x
   x = 46,658,643.38/10,391.58
6. Step 6: Final answer
   x = 4,490.04