Finding the Fourth Proportional to 46,659.43, 64,390.71 and 25,439.05

Step by Step Solution

1. Step 1: Write the proportion equation
   46,659.43 : 64,390.71 = 25,439.05 : x
2. Step 2: Convert to fraction form
   46,659.43/64,390.71 = 25,439.05/x
3. Step 3: Cross multiply
   46,659.43x = 64,390.71 × 25,439.05
4. Step 4: Simplify right side
   46,659.43x = 1,638,038,491.23
5. Step 5: Solve for x
   x = 1,638,038,491.23/46,659.43
6. Step 6: Final answer
   x = 35,106.27