Finding the Fourth Proportional to 67,069.62, 100,619.98 and 19,682.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,069.62 : 100,619.98 = 19,682.78 : x
2. Step 2: Convert to fraction form
   67,069.62/100,619.98 = 19,682.78/x
3. Step 3: Cross multiply
   67,069.62x = 100,619.98 × 19,682.78
4. Step 4: Simplify right side
   67,069.62x = 1,980,480,929.94
5. Step 5: Solve for x
   x = 1,980,480,929.94/67,069.62
6. Step 6: Final answer
   x = 29,528.73