Finding the Fourth Proportional to 45,488.89, 62,788.19 and 28,733.05

Step by Step Solution

1. Step 1: Write the proportion equation
   45,488.89 : 62,788.19 = 28,733.05 : x
2. Step 2: Convert to fraction form
   45,488.89/62,788.19 = 28,733.05/x
3. Step 3: Cross multiply
   45,488.89x = 62,788.19 × 28,733.05
4. Step 4: Simplify right side
   45,488.89x = 1,804,096,059.01
5. Step 5: Solve for x
   x = 1,804,096,059.01/45,488.89
6. Step 6: Final answer
   x = 39,660.15