Finding the Fourth Proportional to 71,099.98, 106,671.98 and 42,668.68

Step by Step Solution

1. Step 1: Write the proportion equation
   71,099.98 : 106,671.98 = 42,668.68 : x
2. Step 2: Convert to fraction form
   71,099.98/106,671.98 = 42,668.68/x
3. Step 3: Cross multiply
   71,099.98x = 106,671.98 × 42,668.68
4. Step 4: Simplify right side
   71,099.98x = 4,551,552,579.59
5. Step 5: Solve for x
   x = 4,551,552,579.59/71,099.98
6. Step 6: Final answer
   x = 64,016.23