Finding the Fourth Proportional to 140,160, 210,270.72 and 52,608

Step by Step Solution

1. Step 1: Write the proportion equation
   140,160 : 210,270.72 = 52,608 : x
2. Step 2: Convert to fraction form
   140,160/210,270.72 = 52,608/x
3. Step 3: Cross multiply
   140,160x = 210,270.72 × 52,608
4. Step 4: Simplify right side
   140,160x = 11,061,922,037.76
5. Step 5: Solve for x
   x = 11,061,922,037.76/140,160
6. Step 6: Final answer
   x = 78,923.53