Finding the Fourth Proportional to 13,131.25, 19,687.59 and 6,552.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,131.25 : 19,687.59 = 6,552.77 : x
2. Step 2: Convert to fraction form
   13,131.25/19,687.59 = 6,552.77/x
3. Step 3: Cross multiply
   13,131.25x = 19,687.59 × 6,552.77
4. Step 4: Simplify right side
   13,131.25x = 129,008,150.69
5. Step 5: Solve for x
   x = 129,008,150.69/13,131.25
6. Step 6: Final answer
   x = 9,824.52