Finding the Fourth Proportional to 72,611.36, 108,923.76 and 28,241.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,611.36 : 108,923.76 = 28,241.48 : x
2. Step 2: Convert to fraction form
   72,611.36/108,923.76 = 28,241.48/x
3. Step 3: Cross multiply
   72,611.36x = 108,923.76 × 28,241.48
4. Step 4: Simplify right side
   72,611.36x = 3,076,168,189.56
5. Step 5: Solve for x
   x = 3,076,168,189.56/72,611.36
6. Step 6: Final answer
   x = 42,364.83