Finding the Fourth Proportional to 90,657, 125,103.83 and 49,821.03

Step by Step Solution

1. Step 1: Write the proportion equation
   90,657 : 125,103.83 = 49,821.03 : x
2. Step 2: Convert to fraction form
   90,657/125,103.83 = 49,821.03/x
3. Step 3: Cross multiply
   90,657x = 125,103.83 × 49,821.03
4. Step 4: Simplify right side
   90,657x = 6,232,801,667.54
5. Step 5: Solve for x
   x = 6,232,801,667.54/90,657
6. Step 6: Final answer
   x = 68,751.47