Finding the Fourth Proportional to 85,748.76, 118,385.82 and 67,915.80

Step by Step Solution

1. Step 1: Write the proportion equation
   85,748.76 : 118,385.82 = 67,915.80 : x
2. Step 2: Convert to fraction form
   85,748.76/118,385.82 = 67,915.80/x
3. Step 3: Cross multiply
   85,748.76x = 118,385.82 × 67,915.80
4. Step 4: Simplify right side
   85,748.76x = 8,040,267,673.96
5. Step 5: Solve for x
   x = 8,040,267,673.96/85,748.76
6. Step 6: Final answer
   x = 93,765.41