Finding the Fourth Proportional to 19,875.48, 27,428.82 and 10,923.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,875.48 : 27,428.82 = 10,923.30 : x
2. Step 2: Convert to fraction form
   19,875.48/27,428.82 = 10,923.30/x
3. Step 3: Cross multiply
   19,875.48x = 27,428.82 × 10,923.30
4. Step 4: Simplify right side
   19,875.48x = 299,613,229.51
5. Step 5: Solve for x
   x = 299,613,229.51/19,875.48
6. Step 6: Final answer
   x = 15,074.52