Finding the Fourth Proportional to 10,889.60, 16,327.59 and 4,562.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,889.60 : 16,327.59 = 4,562.76 : x
2. Step 2: Convert to fraction form
   10,889.60/16,327.59 = 4,562.76/x
3. Step 3: Cross multiply
   10,889.60x = 16,327.59 × 4,562.76
4. Step 4: Simplify right side
   10,889.60x = 74,498,918.67
5. Step 5: Solve for x
   x = 74,498,918.67/10,889.60
6. Step 6: Final answer
   x = 6,841.29