Finding the Fourth Proportional to 108,039.42, 149,052.78 and 67,682.88

Step by Step Solution

1. Step 1: Write the proportion equation
   108,039.42 : 149,052.78 = 67,682.88 : x
2. Step 2: Convert to fraction form
   108,039.42/149,052.78 = 67,682.88/x
3. Step 3: Cross multiply
   108,039.42x = 149,052.78 × 67,682.88
4. Step 4: Simplify right side
   108,039.42x = 10,088,321,422.41
5. Step 5: Solve for x
   x = 10,088,321,422.41/108,039.42
6. Step 6: Final answer
   x = 93,376.30