Finding the Fourth Proportional to 113,834.48, 170,770.20 and 42,762.60

Step by Step Solution

1. Step 1: Write the proportion equation
   113,834.48 : 170,770.20 = 42,762.60 : x
2. Step 2: Convert to fraction form
   113,834.48/170,770.20 = 42,762.60/x
3. Step 3: Cross multiply
   113,834.48x = 170,770.20 × 42,762.60
4. Step 4: Simplify right side
   113,834.48x = 7,302,577,754.52
5. Step 5: Solve for x
   x = 7,302,577,754.52/113,834.48
6. Step 6: Final answer
   x = 64,150.84