Finding the Fourth Proportional to 10,067.60, 13,893.47 and 5,591.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,067.60 : 13,893.47 = 5,591.76 : x
2. Step 2: Convert to fraction form
   10,067.60/13,893.47 = 5,591.76/x
3. Step 3: Cross multiply
   10,067.60x = 13,893.47 × 5,591.76
4. Step 4: Simplify right side
   10,067.60x = 77,688,956.58
5. Step 5: Solve for x
   x = 77,688,956.58/10,067.60
6. Step 6: Final answer
   x = 7,716.73