Finding the Fourth Proportional to 12,106.52, 16,707.06 and 7,074.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,106.52 : 16,707.06 = 7,074.28 : x
2. Step 2: Convert to fraction form
   12,106.52/16,707.06 = 7,074.28/x
3. Step 3: Cross multiply
   12,106.52x = 16,707.06 × 7,074.28
4. Step 4: Simplify right side
   12,106.52x = 118,190,420.42
5. Step 5: Solve for x
   x = 118,190,420.42/12,106.52
6. Step 6: Final answer
   x = 9,762.54