Finding the Fourth Proportional to 10,077.67, 15,118.89 and 9,910.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,077.67 : 15,118.89 = 9,910.32 : x
2. Step 2: Convert to fraction form
   10,077.67/15,118.89 = 9,910.32/x
3. Step 3: Cross multiply
   10,077.67x = 15,118.89 × 9,910.32
4. Step 4: Simplify right side
   10,077.67x = 149,833,037.94
5. Step 5: Solve for x
   x = 149,833,037.94/10,077.67
6. Step 6: Final answer
   x = 14,867.83