Finding the Fourth Proportional to 104,904.81, 144,766.82 and 57,158.55

Step by Step Solution

1. Step 1: Write the proportion equation
   104,904.81 : 144,766.82 = 57,158.55 : x
2. Step 2: Convert to fraction form
   104,904.81/144,766.82 = 57,158.55/x
3. Step 3: Cross multiply
   104,904.81x = 144,766.82 × 57,158.55
4. Step 4: Simplify right side
   104,904.81x = 8,274,661,233.52
5. Step 5: Solve for x
   x = 8,274,661,233.52/104,904.81
6. Step 6: Final answer
   x = 78,877.81