Finding the Fourth Proportional to 116,671.61, 160,964.71 and 76,408.33

Step by Step Solution

1. Step 1: Write the proportion equation
   116,671.61 : 160,964.71 = 76,408.33 : x
2. Step 2: Convert to fraction form
   116,671.61/160,964.71 = 76,408.33/x
3. Step 3: Cross multiply
   116,671.61x = 160,964.71 × 76,408.33
4. Step 4: Simplify right side
   116,671.61x = 12,299,044,680.03
5. Step 5: Solve for x
   x = 12,299,044,680.03/116,671.61
6. Step 6: Final answer
   x = 105,415.92