Finding the Fourth Proportional to 103,086.77, 142,257.33 and 60,648.03

Step by Step Solution

1. Step 1: Write the proportion equation
   103,086.77 : 142,257.33 = 60,648.03 : x
2. Step 2: Convert to fraction form
   103,086.77/142,257.33 = 60,648.03/x
3. Step 3: Cross multiply
   103,086.77x = 142,257.33 × 60,648.03
4. Step 4: Simplify right side
   103,086.77x = 8,627,626,817.56
5. Step 5: Solve for x
   x = 8,627,626,817.56/103,086.77
6. Step 6: Final answer
   x = 83,692.87