Finding the Fourth Proportional to 12,106.75, 16,710.96 and 7,390.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,106.75 : 16,710.96 = 7,390.12 : x
2. Step 2: Convert to fraction form
   12,106.75/16,710.96 = 7,390.12/x
3. Step 3: Cross multiply
   12,106.75x = 16,710.96 × 7,390.12
4. Step 4: Simplify right side
   12,106.75x = 123,495,999.72
5. Step 5: Solve for x
   x = 123,495,999.72/12,106.75
6. Step 6: Final answer
   x = 10,200.59