Finding the Fourth Proportional to 49,039.55, 67,673.94 and 28,897.28

Step by Step Solution

1. Step 1: Write the proportion equation
   49,039.55 : 67,673.94 = 28,897.28 : x
2. Step 2: Convert to fraction form
   49,039.55/67,673.94 = 28,897.28/x
3. Step 3: Cross multiply
   49,039.55x = 67,673.94 × 28,897.28
4. Step 4: Simplify right side
   49,039.55x = 1,955,592,792.88
5. Step 5: Solve for x
   x = 1,955,592,792.88/49,039.55
6. Step 6: Final answer
   x = 39,877.87