Finding the Fourth Proportional to 113,112.60, 169,560.90 and 42,016.20

Step by Step Solution

1. Step 1: Write the proportion equation
   113,112.60 : 169,560.90 = 42,016.20 : x
2. Step 2: Convert to fraction form
   113,112.60/169,560.90 = 42,016.20/x
3. Step 3: Cross multiply
   113,112.60x = 169,560.90 × 42,016.20
4. Step 4: Simplify right side
   113,112.60x = 7,124,304,686.58
5. Step 5: Solve for x
   x = 7,124,304,686.58/113,112.60
6. Step 6: Final answer
   x = 62,984.18