Finding the Fourth Proportional to 13,590.86, 18,756.77 and 7,622.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,590.86 : 18,756.77 = 7,622.51 : x
2. Step 2: Convert to fraction form
   13,590.86/18,756.77 = 7,622.51/x
3. Step 3: Cross multiply
   13,590.86x = 18,756.77 × 7,622.51
4. Step 4: Simplify right side
   13,590.86x = 142,973,535.00
5. Step 5: Solve for x
   x = 142,973,535.00/13,590.86
6. Step 6: Final answer
   x = 10,519.83