Finding the Fourth Proportional to 72,825.39, 109,126.80 and 49,045

Step by Step Solution

1. Step 1: Write the proportion equation
   72,825.39 : 109,126.80 = 49,045 : x
2. Step 2: Convert to fraction form
   72,825.39/109,126.80 = 49,045/x
3. Step 3: Cross multiply
   72,825.39x = 109,126.80 × 49,045
4. Step 4: Simplify right side
   72,825.39x = 5,352,123,906
5. Step 5: Solve for x
   x = 5,352,123,906/72,825.39
6. Step 6: Final answer
   x = 73,492.55