Finding the Fourth Proportional to 46,697.10, 64,423.56 and 28,761

Step by Step Solution

1. Step 1: Write the proportion equation
   46,697.10 : 64,423.56 = 28,761 : x
2. Step 2: Convert to fraction form
   46,697.10/64,423.56 = 28,761/x
3. Step 3: Cross multiply
   46,697.10x = 64,423.56 × 28,761
4. Step 4: Simplify right side
   46,697.10x = 1,852,886,009.16
5. Step 5: Solve for x
   x = 1,852,886,009.16/46,697.10
6. Step 6: Final answer
   x = 39,678.82