Finding the Fourth Proportional to 28,111.30, 42,183.15 and 10,593.70

Step by Step Solution

1. Step 1: Write the proportion equation
   28,111.30 : 42,183.15 = 10,593.70 : x
2. Step 2: Convert to fraction form
   28,111.30/42,183.15 = 10,593.70/x
3. Step 3: Cross multiply
   28,111.30x = 42,183.15 × 10,593.70
4. Step 4: Simplify right side
   28,111.30x = 446,875,636.16
5. Step 5: Solve for x
   x = 446,875,636.16/28,111.30
6. Step 6: Final answer
   x = 15,896.65