Finding the Fourth Proportional to 5,103.48, 7,043.14 and 2,978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.48 : 7,043.14 = 2,978.84 : x
2. Step 2: Convert to fraction form
   5,103.48/7,043.14 = 2,978.84/x
3. Step 3: Cross multiply
   5,103.48x = 7,043.14 × 2,978.84
4. Step 4: Simplify right side
   5,103.48x = 20,980,387.16
5. Step 5: Solve for x
   x = 20,980,387.16/5,103.48
6. Step 6: Final answer
   x = 4,111.00