Finding the Fourth Proportional to 41,428.48, 62,118.72 and 28,296.72

Step by Step Solution

1. Step 1: Write the proportion equation
   41,428.48 : 62,118.72 = 28,296.72 : x
2. Step 2: Convert to fraction form
   41,428.48/62,118.72 = 28,296.72/x
3. Step 3: Cross multiply
   41,428.48x = 62,118.72 × 28,296.72
4. Step 4: Simplify right side
   41,428.48x = 1,757,756,026.60
5. Step 5: Solve for x
   x = 1,757,756,026.60/41,428.48
6. Step 6: Final answer
   x = 42,428.69