Finding the Fourth Proportional to 12,868.04, 19,297.20 and 5,475.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,868.04 : 19,297.20 = 5,475.98 : x
2. Step 2: Convert to fraction form
   12,868.04/19,297.20 = 5,475.98/x
3. Step 3: Cross multiply
   12,868.04x = 19,297.20 × 5,475.98
4. Step 4: Simplify right side
   12,868.04x = 105,671,081.26
5. Step 5: Solve for x
   x = 105,671,081.26/12,868.04
6. Step 6: Final answer
   x = 8,211.90