Finding the Fourth Proportional to 13,952.16, 20,918.52 and 5,184.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,952.16 : 20,918.52 = 5,184.72 : x
2. Step 2: Convert to fraction form
   13,952.16/20,918.52 = 5,184.72/x
3. Step 3: Cross multiply
   13,952.16x = 20,918.52 × 5,184.72
4. Step 4: Simplify right side
   13,952.16x = 108,456,669.01
5. Step 5: Solve for x
   x = 108,456,669.01/13,952.16
6. Step 6: Final answer
   x = 7,773.47