Finding the Fourth Proportional to 83,641.41, 115,422.57 and 45,399.15

Step by Step Solution

1. Step 1: Write the proportion equation
   83,641.41 : 115,422.57 = 45,399.15 : x
2. Step 2: Convert to fraction form
   83,641.41/115,422.57 = 45,399.15/x
3. Step 3: Cross multiply
   83,641.41x = 115,422.57 × 45,399.15
4. Step 4: Simplify right side
   83,641.41x = 5,240,086,568.82
5. Step 5: Solve for x
   x = 5,240,086,568.82/83,641.41
6. Step 6: Final answer
   x = 62,649.43