Finding the Fourth Proportional to 46,699.10, 64,426.32 and 28,763

Step by Step Solution

1. Step 1: Write the proportion equation
   46,699.10 : 64,426.32 = 28,763 : x
2. Step 2: Convert to fraction form
   46,699.10/64,426.32 = 28,763/x
3. Step 3: Cross multiply
   46,699.10x = 64,426.32 × 28,763
4. Step 4: Simplify right side
   46,699.10x = 1,853,094,242.16
5. Step 5: Solve for x
   x = 1,853,094,242.16/46,699.10
6. Step 6: Final answer
   x = 39,681.58