Finding the Fourth Proportional to 113,929.67, 170,898.60 and 42,845.79

Step by Step Solution

1. Step 1: Write the proportion equation
   113,929.67 : 170,898.60 = 42,845.79 : x
2. Step 2: Convert to fraction form
   113,929.67/170,898.60 = 42,845.79/x
3. Step 3: Cross multiply
   113,929.67x = 170,898.60 × 42,845.79
4. Step 4: Simplify right side
   113,929.67x = 7,322,285,526.89
5. Step 5: Solve for x
   x = 7,322,285,526.89/113,929.67
6. Step 6: Final answer
   x = 64,270.23