Finding the Fourth Proportional to 37,109.88, 55,652.94 and 12,143.16

Step by Step Solution

1. Step 1: Write the proportion equation
   37,109.88 : 55,652.94 = 12,143.16 : x
2. Step 2: Convert to fraction form
   37,109.88/55,652.94 = 12,143.16/x
3. Step 3: Cross multiply
   37,109.88x = 55,652.94 × 12,143.16
4. Step 4: Simplify right side
   37,109.88x = 675,802,554.89
5. Step 5: Solve for x
   x = 675,802,554.89/37,109.88
6. Step 6: Final answer
   x = 18,210.85