Finding the Fourth Proportional to 113,384.10, 169,968.15 and 42,287.70

Step by Step Solution

1. Step 1: Write the proportion equation
   113,384.10 : 169,968.15 = 42,287.70 : x
2. Step 2: Convert to fraction form
   113,384.10/169,968.15 = 42,287.70/x
3. Step 3: Cross multiply
   113,384.10x = 169,968.15 × 42,287.70
4. Step 4: Simplify right side
   113,384.10x = 7,187,562,136.76
5. Step 5: Solve for x
   x = 7,187,562,136.76/113,384.10
6. Step 6: Final answer
   x = 63,391.27