Finding the Fourth Proportional to 72,805.43, 109,234.42 and 25,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,805.43 : 109,234.42 = 25,427.50 : x
2. Step 2: Convert to fraction form
   72,805.43/109,234.42 = 25,427.50/x
3. Step 3: Cross multiply
   72,805.43x = 109,234.42 × 25,427.50
4. Step 4: Simplify right side
   72,805.43x = 2,777,558,214.55
5. Step 5: Solve for x
   x = 2,777,558,214.55/72,805.43
6. Step 6: Final answer
   x = 38,150.43