Finding the Fourth Proportional to 105,344.49, 145,375.38 and 57,597.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,344.49 : 145,375.38 = 57,597.83 : x
2. Step 2: Convert to fraction form
   105,344.49/145,375.38 = 57,597.83/x
3. Step 3: Cross multiply
   105,344.49x = 145,375.38 × 57,597.83
4. Step 4: Simplify right side
   105,344.49x = 8,373,305,696.55
5. Step 5: Solve for x
   x = 8,373,305,696.55/105,344.49
6. Step 6: Final answer
   x = 79,484.99