Finding the Fourth Proportional to 80,492.33, 120,456.01 and 64,658.45

Step by Step Solution

1. Step 1: Write the proportion equation
   80,492.33 : 120,456.01 = 64,658.45 : x
2. Step 2: Convert to fraction form
   80,492.33/120,456.01 = 64,658.45/x
3. Step 3: Cross multiply
   80,492.33x = 120,456.01 × 64,658.45
4. Step 4: Simplify right side
   80,492.33x = 7,788,499,281.75
5. Step 5: Solve for x
   x = 7,788,499,281.75/80,492.33
6. Step 6: Final answer
   x = 96,760.76