Finding the Fourth Proportional to 113,346.12, 169,908.24 and 42,216.54

Step by Step Solution

1. Step 1: Write the proportion equation
   113,346.12 : 169,908.24 = 42,216.54 : x
2. Step 2: Convert to fraction form
   113,346.12/169,908.24 = 42,216.54/x
3. Step 3: Cross multiply
   113,346.12x = 169,908.24 × 42,216.54
4. Step 4: Simplify right side
   113,346.12x = 7,172,938,010.29
5. Step 5: Solve for x
   x = 7,172,938,010.29/113,346.12
6. Step 6: Final answer
   x = 63,283.49