Finding the Fourth Proportional to 13,086.01, 19,628.55 and 5,690.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,086.01 : 19,628.55 = 5,690.48 : x
2. Step 2: Convert to fraction form
   13,086.01/19,628.55 = 5,690.48/x
3. Step 3: Cross multiply
   13,086.01x = 19,628.55 × 5,690.48
4. Step 4: Simplify right side
   13,086.01x = 111,695,844.27
5. Step 5: Solve for x
   x = 111,695,844.27/13,086.01
6. Step 6: Final answer
   x = 8,535.52