Finding the Fourth Proportional to 72,613.85, 108,927.50 and 28,243.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,613.85 : 108,927.50 = 28,243.94 : x
2. Step 2: Convert to fraction form
   72,613.85/108,927.50 = 28,243.94/x
3. Step 3: Cross multiply
   72,613.85x = 108,927.50 × 28,243.94
4. Step 4: Simplify right side
   72,613.85x = 3,076,541,774.35
5. Step 5: Solve for x
   x = 3,076,541,774.35/72,613.85
6. Step 6: Final answer
   x = 42,368.53