Finding the Fourth Proportional to 12,870.96, 19,302.96 and 4,549.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.96 : 19,302.96 = 4,549.88 : x
2. Step 2: Convert to fraction form
   12,870.96/19,302.96 = 4,549.88/x
3. Step 3: Cross multiply
   12,870.96x = 19,302.96 × 4,549.88
4. Step 4: Simplify right side
   12,870.96x = 87,826,151.64
5. Step 5: Solve for x
   x = 87,826,151.64/12,870.96
6. Step 6: Final answer
   x = 6,823.59