Finding the Fourth Proportional to 14,106.61, 21,145.00 and 5,216.23

Step by Step Solution

1. Step 1: Write the proportion equation
   14,106.61 : 21,145.00 = 5,216.23 : x
2. Step 2: Convert to fraction form
   14,106.61/21,145.00 = 5,216.23/x
3. Step 3: Cross multiply
   14,106.61x = 21,145.00 × 5,216.23
4. Step 4: Simplify right side
   14,106.61x = 110,297,095.31
5. Step 5: Solve for x
   x = 110,297,095.31/14,106.61
6. Step 6: Final answer
   x = 7,818.82