Finding the Fourth Proportional to 67,076.42, 100,602.90 and 19,690.74

Step by Step Solution

1. Step 1: Write the proportion equation
   67,076.42 : 100,602.90 = 19,690.74 : x
2. Step 2: Convert to fraction form
   67,076.42/100,602.90 = 19,690.74/x
3. Step 3: Cross multiply
   67,076.42x = 100,602.90 × 19,690.74
4. Step 4: Simplify right side
   67,076.42x = 1,980,945,448.69
5. Step 5: Solve for x
   x = 1,980,945,448.69/67,076.42
6. Step 6: Final answer
   x = 29,532.67