Finding the Fourth Proportional to 67,077.72, 100,613.58 and 19,690.92

Step by Step Solution

1. Step 1: Write the proportion equation
   67,077.72 : 100,613.58 = 19,690.92 : x
2. Step 2: Convert to fraction form
   67,077.72/100,613.58 = 19,690.92/x
3. Step 3: Cross multiply
   67,077.72x = 100,613.58 × 19,690.92
4. Step 4: Simplify right side
   67,077.72x = 1,981,173,954.69
5. Step 5: Solve for x
   x = 1,981,173,954.69/67,077.72
6. Step 6: Final answer
   x = 29,535.50