Finding the Fourth Proportional to 12,964.10, 19,446.55 and 5,066.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,964.10 : 19,446.55 = 5,066.28 : x
2. Step 2: Convert to fraction form
   12,964.10/19,446.55 = 5,066.28/x
3. Step 3: Cross multiply
   12,964.10x = 19,446.55 × 5,066.28
4. Step 4: Simplify right side
   12,964.10x = 98,521,667.33
5. Step 5: Solve for x
   x = 98,521,667.33/12,964.10
6. Step 6: Final answer
   x = 7,599.58