Finding the Fourth Proportional to 113,480.76, 170,232.42 and 43,419

Step by Step Solution

1. Step 1: Write the proportion equation
   113,480.76 : 170,232.42 = 43,419 : x
2. Step 2: Convert to fraction form
   113,480.76/170,232.42 = 43,419/x
3. Step 3: Cross multiply
   113,480.76x = 170,232.42 × 43,419
4. Step 4: Simplify right side
   113,480.76x = 7,391,321,443.98
5. Step 5: Solve for x
   x = 7,391,321,443.98/113,480.76
6. Step 6: Final answer
   x = 65,132.82