Finding the Fourth Proportional to 72,611.86, 108,924.51 and 28,241.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,611.86 : 108,924.51 = 28,241.98 : x
2. Step 2: Convert to fraction form
   72,611.86/108,924.51 = 28,241.98/x
3. Step 3: Cross multiply
   72,611.86x = 108,924.51 × 28,241.98
4. Step 4: Simplify right side
   72,611.86x = 3,076,243,832.93
5. Step 5: Solve for x
   x = 3,076,243,832.93/72,611.86
6. Step 6: Final answer
   x = 42,365.58