Finding the Fourth Proportional to 20,799.32, 31,199.00 and 5,216.94

Step by Step Solution

1. Step 1: Write the proportion equation
   20,799.32 : 31,199.00 = 5,216.94 : x
2. Step 2: Convert to fraction form
   20,799.32/31,199.00 = 5,216.94/x
3. Step 3: Cross multiply
   20,799.32x = 31,199.00 × 5,216.94
4. Step 4: Simplify right side
   20,799.32x = 162,763,284.98
5. Step 5: Solve for x
   x = 162,763,284.98/20,799.32
6. Step 6: Final answer
   x = 7,825.42