Finding the Fourth Proportional to 46,687.10, 64,407.33 and 28,775.57

Step by Step Solution

1. Step 1: Write the proportion equation
   46,687.10 : 64,407.33 = 28,775.57 : x
2. Step 2: Convert to fraction form
   46,687.10/64,407.33 = 28,775.57/x
3. Step 3: Cross multiply
   46,687.10x = 64,407.33 × 28,775.57
4. Step 4: Simplify right side
   46,687.10x = 1,853,357,310.89
5. Step 5: Solve for x
   x = 1,853,357,310.89/46,687.10
6. Step 6: Final answer
   x = 39,697.42