Finding the Fourth Proportional to 9,142.48, 13,713.84 and 3,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.48 : 13,713.84 = 3,298.72 : x
2. Step 2: Convert to fraction form
   9,142.48/13,713.84 = 3,298.72/x
3. Step 3: Cross multiply
   9,142.48x = 13,713.84 × 3,298.72
4. Step 4: Simplify right side
   9,142.48x = 45,238,118.28
5. Step 5: Solve for x
   x = 45,238,118.28/9,142.48
6. Step 6: Final answer
   x = 4,948.12