Finding the Fourth Proportional to 8,938.84, 12,291.86 and 7,757.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,938.84 : 12,291.86 = 7,757.86 : x
2. Step 2: Convert to fraction form
   8,938.84/12,291.86 = 7,757.86/x
3. Step 3: Cross multiply
   8,938.84x = 12,291.86 × 7,757.86
4. Step 4: Simplify right side
   8,938.84x = 95,358,529.02
5. Step 5: Solve for x
   x = 95,358,529.02/8,938.84
6. Step 6: Final answer
   x = 10,667.89