Finding the Fourth Proportional to 13,131.76, 19,697.82 and 4,366.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,131.76 : 19,697.82 = 4,366.68 : x
2. Step 2: Convert to fraction form
   13,131.76/19,697.82 = 4,366.68/x
3. Step 3: Cross multiply
   13,131.76x = 19,697.82 × 4,366.68
4. Step 4: Simplify right side
   13,131.76x = 86,014,011.02
5. Step 5: Solve for x
   x = 86,014,011.02/13,131.76
6. Step 6: Final answer
   x = 6,550.07