Finding the Fourth Proportional to 7,906.28, 10,915.72 and 4,926.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,906.28 : 10,915.72 = 4,926.50 : x
2. Step 2: Convert to fraction form
   7,906.28/10,915.72 = 4,926.50/x
3. Step 3: Cross multiply
   7,906.28x = 10,915.72 × 4,926.50
4. Step 4: Simplify right side
   7,906.28x = 53,776,227.69
5. Step 5: Solve for x
   x = 53,776,227.69/7,906.28
6. Step 6: Final answer
   x = 6,801.71