Finding the Fourth Proportional to 12,967.58, 19,451.76 and 5,069.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,967.58 : 19,451.76 = 5,069.78 : x
2. Step 2: Convert to fraction form
   12,967.58/19,451.76 = 5,069.78/x
3. Step 3: Cross multiply
   12,967.58x = 19,451.76 × 5,069.78
4. Step 4: Simplify right side
   12,967.58x = 98,616,143.81
5. Step 5: Solve for x
   x = 98,616,143.81/12,967.58
6. Step 6: Final answer
   x = 7,604.82