Finding the Fourth Proportional to 12,891.56, 19,341.72 and 5,096.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,891.56 : 19,341.72 = 5,096.12 : x
2. Step 2: Convert to fraction form
   12,891.56/19,341.72 = 5,096.12/x
3. Step 3: Cross multiply
   12,891.56x = 19,341.72 × 5,096.12
4. Step 4: Simplify right side
   12,891.56x = 98,567,726.13
5. Step 5: Solve for x
   x = 98,567,726.13/12,891.56
6. Step 6: Final answer
   x = 7,645.91