Finding the Fourth Proportional to 72,152.70, 99,584.42 and 47,580.27

Step by Step Solution

1. Step 1: Write the proportion equation
   72,152.70 : 99,584.42 = 47,580.27 : x
2. Step 2: Convert to fraction form
   72,152.70/99,584.42 = 47,580.27/x
3. Step 3: Cross multiply
   72,152.70x = 99,584.42 × 47,580.27
4. Step 4: Simplify right side
   72,152.70x = 4,738,253,353.49
5. Step 5: Solve for x
   x = 4,738,253,353.49/72,152.70
6. Step 6: Final answer
   x = 65,669.80