Finding the Fourth Proportional to 12,870.52, 19,301.66 and 4,103.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.52 : 19,301.66 = 4,103.38 : x
2. Step 2: Convert to fraction form
   12,870.52/19,301.66 = 4,103.38/x
3. Step 3: Cross multiply
   12,870.52x = 19,301.66 × 4,103.38
4. Step 4: Simplify right side
   12,870.52x = 79,201,949.10
5. Step 5: Solve for x
   x = 79,201,949.10/12,870.52
6. Step 6: Final answer
   x = 6,153.75