Finding the Fourth Proportional to 27,189, 37,517.58 and 15,860.88

Step by Step Solution

1. Step 1: Write the proportion equation
   27,189 : 37,517.58 = 15,860.88 : x
2. Step 2: Convert to fraction form
   27,189/37,517.58 = 15,860.88/x
3. Step 3: Cross multiply
   27,189x = 37,517.58 × 15,860.88
4. Step 4: Simplify right side
   27,189x = 595,061,834.27
5. Step 5: Solve for x
   x = 595,061,834.27/27,189
6. Step 6: Final answer
   x = 21,886.12