Finding the Fourth Proportional to 10,816.20, 16,219.98 and 3,889.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,816.20 : 16,219.98 = 3,889.08 : x
2. Step 2: Convert to fraction form
   10,816.20/16,219.98 = 3,889.08/x
3. Step 3: Cross multiply
   10,816.20x = 16,219.98 × 3,889.08
4. Step 4: Simplify right side
   10,816.20x = 63,080,799.82
5. Step 5: Solve for x
   x = 63,080,799.82/10,816.20
6. Step 6: Final answer
   x = 5,832.07