Finding the Fourth Proportional to 103,103.94, 142,285.16 and 57,792.03

Step by Step Solution

1. Step 1: Write the proportion equation
   103,103.94 : 142,285.16 = 57,792.03 : x
2. Step 2: Convert to fraction form
   103,103.94/142,285.16 = 57,792.03/x
3. Step 3: Cross multiply
   103,103.94x = 142,285.16 × 57,792.03
4. Step 4: Simplify right side
   103,103.94x = 8,222,948,321.46
5. Step 5: Solve for x
   x = 8,222,948,321.46/103,103.94
6. Step 6: Final answer
   x = 79,753.97