Finding the Fourth Proportional to 7,905.98, 10,904.28 and 5,515.94

Step by Step Solution

1. Step 1: Write the proportion equation
   7,905.98 : 10,904.28 = 5,515.94 : x
2. Step 2: Convert to fraction form
   7,905.98/10,904.28 = 5,515.94/x
3. Step 3: Cross multiply
   7,905.98x = 10,904.28 × 5,515.94
4. Step 4: Simplify right side
   7,905.98x = 60,147,354.22
5. Step 5: Solve for x
   x = 60,147,354.22/7,905.98
6. Step 6: Final answer
   x = 7,607.83