Finding the Fourth Proportional to 10,910.52, 16,360.62 and 5,978.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,910.52 : 16,360.62 = 5,978.76 : x
2. Step 2: Convert to fraction form
   10,910.52/16,360.62 = 5,978.76/x
3. Step 3: Cross multiply
   10,910.52x = 16,360.62 × 5,978.76
4. Step 4: Simplify right side
   10,910.52x = 97,816,220.43
5. Step 5: Solve for x
   x = 97,816,220.43/10,910.52
6. Step 6: Final answer
   x = 8,965.31