Finding the Fourth Proportional to 83,644.80, 115,426.32 and 45,919.92

Step by Step Solution

1. Step 1: Write the proportion equation
   83,644.80 : 115,426.32 = 45,919.92 : x
2. Step 2: Convert to fraction form
   83,644.80/115,426.32 = 45,919.92/x
3. Step 3: Cross multiply
   83,644.80x = 115,426.32 × 45,919.92
4. Step 4: Simplify right side
   83,644.80x = 5,300,367,380.29
5. Step 5: Solve for x
   x = 5,300,367,380.29/83,644.80
6. Step 6: Final answer
   x = 63,367.57