Finding the Fourth Proportional to 12,870.27, 19,301.29 and 4,103.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.27 : 19,301.29 = 4,103.13 : x
2. Step 2: Convert to fraction form
   12,870.27/19,301.29 = 4,103.13/x
3. Step 3: Cross multiply
   12,870.27x = 19,301.29 × 4,103.13
4. Step 4: Simplify right side
   12,870.27x = 79,195,702.04
5. Step 5: Solve for x
   x = 79,195,702.04/12,870.27
6. Step 6: Final answer
   x = 6,153.38