Finding the Fourth Proportional to 27,443.09, 37,870.50 and 15,506.17

Step by Step Solution

1. Step 1: Write the proportion equation
   27,443.09 : 37,870.50 = 15,506.17 : x
2. Step 2: Convert to fraction form
   27,443.09/37,870.50 = 15,506.17/x
3. Step 3: Cross multiply
   27,443.09x = 37,870.50 × 15,506.17
4. Step 4: Simplify right side
   27,443.09x = 587,226,144.10
5. Step 5: Solve for x
   x = 587,226,144.10/27,443.09
6. Step 6: Final answer
   x = 21,397.96