Finding the Fourth Proportional to 10,670.25, 16,026.13 and 8,697.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,670.25 : 16,026.13 = 8,697.33 : x
2. Step 2: Convert to fraction form
   10,670.25/16,026.13 = 8,697.33/x
3. Step 3: Cross multiply
   10,670.25x = 16,026.13 × 8,697.33
4. Step 4: Simplify right side
   10,670.25x = 139,384,552.10
5. Step 5: Solve for x
   x = 139,384,552.10/10,670.25
6. Step 6: Final answer
   x = 13,062.91