Finding the Fourth Proportional to 27,870.13, 41,780.56 and 10,327.69

Step by Step Solution

1. Step 1: Write the proportion equation
   27,870.13 : 41,780.56 = 10,327.69 : x
2. Step 2: Convert to fraction form
   27,870.13/41,780.56 = 10,327.69/x
3. Step 3: Cross multiply
   27,870.13x = 41,780.56 × 10,327.69
4. Step 4: Simplify right side
   27,870.13x = 431,496,671.71
5. Step 5: Solve for x
   x = 431,496,671.71/27,870.13
6. Step 6: Final answer
   x = 15,482.41