Finding the Fourth Proportional to 10,820.36, 16,217.52 and 7,073.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,820.36 : 16,217.52 = 7,073.90 : x
2. Step 2: Convert to fraction form
   10,820.36/16,217.52 = 7,073.90/x
3. Step 3: Cross multiply
   10,820.36x = 16,217.52 × 7,073.90
4. Step 4: Simplify right side
   10,820.36x = 114,721,114.73
5. Step 5: Solve for x
   x = 114,721,114.73/10,820.36
6. Step 6: Final answer
   x = 10,602.34