Finding the Fourth Proportional to 10,134.62, 13,953.52 and 8,938.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,134.62 : 13,953.52 = 8,938.60 : x
2. Step 2: Convert to fraction form
   10,134.62/13,953.52 = 8,938.60/x
3. Step 3: Cross multiply
   10,134.62x = 13,953.52 × 8,938.60
4. Step 4: Simplify right side
   10,134.62x = 124,724,938.37
5. Step 5: Solve for x
   x = 124,724,938.37/10,134.62
6. Step 6: Final answer
   x = 12,306.82