Finding the Fourth Proportional to 27,086.71, 37,381.61 and 15,153.89

Step by Step Solution

1. Step 1: Write the proportion equation
   27,086.71 : 37,381.61 = 15,153.89 : x
2. Step 2: Convert to fraction form
   27,086.71/37,381.61 = 15,153.89/x
3. Step 3: Cross multiply
   27,086.71x = 37,381.61 × 15,153.89
4. Step 4: Simplify right side
   27,086.71x = 566,476,805.96
5. Step 5: Solve for x
   x = 566,476,805.96/27,086.71
6. Step 6: Final answer
   x = 20,913.46