Finding the Fourth Proportional to 102,168.27, 152,957.16 and 64,770.57

Step by Step Solution

1. Step 1: Write the proportion equation
   102,168.27 : 152,957.16 = 64,770.57 : x
2. Step 2: Convert to fraction form
   102,168.27/152,957.16 = 64,770.57/x
3. Step 3: Cross multiply
   102,168.27x = 152,957.16 × 64,770.57
4. Step 4: Simplify right side
   102,168.27x = 9,907,122,438.78
5. Step 5: Solve for x
   x = 9,907,122,438.78/102,168.27
6. Step 6: Final answer
   x = 96,968.68