Finding the Fourth Proportional to 72,558.69, 108,817.35 and 28,175.95

Step by Step Solution

1. Step 1: Write the proportion equation
   72,558.69 : 108,817.35 = 28,175.95 : x
2. Step 2: Convert to fraction form
   72,558.69/108,817.35 = 28,175.95/x
3. Step 3: Cross multiply
   72,558.69x = 108,817.35 × 28,175.95
4. Step 4: Simplify right side
   72,558.69x = 3,066,032,212.73
5. Step 5: Solve for x
   x = 3,066,032,212.73/72,558.69
6. Step 6: Final answer
   x = 42,255.89