Finding the Fourth Proportional to 9,677.78, 14,515.86 and 3,102.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,677.78 : 14,515.86 = 3,102.20 : x
2. Step 2: Convert to fraction form
   9,677.78/14,515.86 = 3,102.20/x
3. Step 3: Cross multiply
   9,677.78x = 14,515.86 × 3,102.20
4. Step 4: Simplify right side
   9,677.78x = 45,031,100.89
5. Step 5: Solve for x
   x = 45,031,100.89/9,677.78
6. Step 6: Final answer
   x = 4,653.04