Finding the Fourth Proportional to 12,675.80, 17,485.58 and 7,370.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,675.80 : 17,485.58 = 7,370.03 : x
2. Step 2: Convert to fraction form
   12,675.80/17,485.58 = 7,370.03/x
3. Step 3: Cross multiply
   12,675.80x = 17,485.58 × 7,370.03
4. Step 4: Simplify right side
   12,675.80x = 128,869,124.89
5. Step 5: Solve for x
   x = 128,869,124.89/12,675.80
6. Step 6: Final answer
   x = 10,166.55