Finding the Fourth Proportional to 11,870.42, 17,812.32 and 8,175.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.42 : 17,812.32 = 8,175.61 : x
2. Step 2: Convert to fraction form
   11,870.42/17,812.32 = 8,175.61/x
3. Step 3: Cross multiply
   11,870.42x = 17,812.32 × 8,175.61
4. Step 4: Simplify right side
   11,870.42x = 145,626,581.52
5. Step 5: Solve for x
   x = 145,626,581.52/11,870.42
6. Step 6: Final answer
   x = 12,268.02