Finding the Fourth Proportional to 83,600.16, 125,400.24 and 42,018

Step by Step Solution

1. Step 1: Write the proportion equation
   83,600.16 : 125,400.24 = 42,018 : x
2. Step 2: Convert to fraction form
   83,600.16/125,400.24 = 42,018/x
3. Step 3: Cross multiply
   83,600.16x = 125,400.24 × 42,018
4. Step 4: Simplify right side
   83,600.16x = 5,269,067,284.32
5. Step 5: Solve for x
   x = 5,269,067,284.32/83,600.16
6. Step 6: Final answer
   x = 63,027.00