Finding the Fourth Proportional to 13,111.38, 19,669.50 and 5,714.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.38 : 19,669.50 = 5,714.46 : x
2. Step 2: Convert to fraction form
   13,111.38/19,669.50 = 5,714.46/x
3. Step 3: Cross multiply
   13,111.38x = 19,669.50 × 5,714.46
4. Step 4: Simplify right side
   13,111.38x = 112,400,570.97
5. Step 5: Solve for x
   x = 112,400,570.97/13,111.38
6. Step 6: Final answer
   x = 8,572.75