Finding the Fourth Proportional to 12,875.86, 19,319.46 and 5,481.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,875.86 : 19,319.46 = 5,481.10 : x
2. Step 2: Convert to fraction form
   12,875.86/19,319.46 = 5,481.10/x
3. Step 3: Cross multiply
   12,875.86x = 19,319.46 × 5,481.10
4. Step 4: Simplify right side
   12,875.86x = 105,891,892.21
5. Step 5: Solve for x
   x = 105,891,892.21/12,875.86
6. Step 6: Final answer
   x = 8,224.06