Finding the Fourth Proportional to 12,494.64, 18,732.72 and 5,913.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,494.64 : 18,732.72 = 5,913.12 : x
2. Step 2: Convert to fraction form
   12,494.64/18,732.72 = 5,913.12/x
3. Step 3: Cross multiply
   12,494.64x = 18,732.72 × 5,913.12
4. Step 4: Simplify right side
   12,494.64x = 110,768,821.29
5. Step 5: Solve for x
   x = 110,768,821.29/12,494.64
6. Step 6: Final answer
   x = 8,865.31