Finding the Fourth Proportional to 7,915.59, 10,918.75 and 5,226.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,915.59 : 10,918.75 = 5,226.83 : x
2. Step 2: Convert to fraction form
   7,915.59/10,918.75 = 5,226.83/x
3. Step 3: Cross multiply
   7,915.59x = 10,918.75 × 5,226.83
4. Step 4: Simplify right side
   7,915.59x = 57,070,433.15
5. Step 5: Solve for x
   x = 57,070,433.15/7,915.59
6. Step 6: Final answer
   x = 7,209.88