Finding the Fourth Proportional to 104,768.71, 144,583.89 and 57,025.15

Step by Step Solution

1. Step 1: Write the proportion equation
   104,768.71 : 144,583.89 = 57,025.15 : x
2. Step 2: Convert to fraction form
   104,768.71/144,583.89 = 57,025.15/x
3. Step 3: Cross multiply
   104,768.71x = 144,583.89 × 57,025.15
4. Step 4: Simplify right side
   104,768.71x = 8,244,918,014.83
5. Step 5: Solve for x
   x = 8,244,918,014.83/104,768.71
6. Step 6: Final answer
   x = 78,696.38