Finding the Fourth Proportional to 5,515.02, 8,313.86 and 5,148.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515.02 : 8,313.86 = 5,148.42 : x
2. Step 2: Convert to fraction form
   5,515.02/8,313.86 = 5,148.42/x
3. Step 3: Cross multiply
   5,515.02x = 8,313.86 × 5,148.42
4. Step 4: Simplify right side
   5,515.02x = 42,803,243.10
5. Step 5: Solve for x
   x = 42,803,243.10/5,515.02
6. Step 6: Final answer
   x = 7,761.21