Finding the Fourth Proportional to 83,648.72, 115,435.72 and 45,923.28

Step by Step Solution

1. Step 1: Write the proportion equation
   83,648.72 : 115,435.72 = 45,923.28 : x
2. Step 2: Convert to fraction form
   83,648.72/115,435.72 = 45,923.28/x
3. Step 3: Cross multiply
   83,648.72x = 115,435.72 × 45,923.28
4. Step 4: Simplify right side
   83,648.72x = 5,301,186,891.56
5. Step 5: Solve for x
   x = 5,301,186,891.56/83,648.72
6. Step 6: Final answer
   x = 63,374.39