Finding the Fourth Proportional to 72,610.86, 108,923.01 and 28,240.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,610.86 : 108,923.01 = 28,240.98 : x
2. Step 2: Convert to fraction form
   72,610.86/108,923.01 = 28,240.98/x
3. Step 3: Cross multiply
   72,610.86x = 108,923.01 × 28,240.98
4. Step 4: Simplify right side
   72,610.86x = 3,076,092,546.95
5. Step 5: Solve for x
   x = 3,076,092,546.95/72,610.86
6. Step 6: Final answer
   x = 42,364.08