Finding the Fourth Proportional to 28,327.74, 42,453.32 and 10,788

Step by Step Solution

1. Step 1: Write the proportion equation
   28,327.74 : 42,453.32 = 10,788 : x
2. Step 2: Convert to fraction form
   28,327.74/42,453.32 = 10,788/x
3. Step 3: Cross multiply
   28,327.74x = 42,453.32 × 10,788
4. Step 4: Simplify right side
   28,327.74x = 457,986,362.22
5. Step 5: Solve for x
   x = 457,986,362.22/28,327.74
6. Step 6: Final answer
   x = 16,167.42