Finding the Fourth Proportional to 12,965.40, 19,447.15 and 5,066.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,965.40 : 19,447.15 = 5,066.43 : x
2. Step 2: Convert to fraction form
   12,965.40/19,447.15 = 5,066.43/x
3. Step 3: Cross multiply
   12,965.40x = 19,447.15 × 5,066.43
4. Step 4: Simplify right side
   12,965.40x = 98,527,624.17
5. Step 5: Solve for x
   x = 98,527,624.17/12,965.40
6. Step 6: Final answer
   x = 7,599.28