Finding the Fourth Proportional to 72,072.96, 108,077.04 and 32,661.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,072.96 : 108,077.04 = 32,661.60 : x
2. Step 2: Convert to fraction form
   72,072.96/108,077.04 = 32,661.60/x
3. Step 3: Cross multiply
   72,072.96x = 108,077.04 × 32,661.60
4. Step 4: Simplify right side
   72,072.96x = 3,529,969,049.66
5. Step 5: Solve for x
   x = 3,529,969,049.66/72,072.96
6. Step 6: Final answer
   x = 48,977.72