Finding the Fourth Proportional to 9,910, 14,861.56 and 2,888.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910 : 14,861.56 = 2,888.12 : x
2. Step 2: Convert to fraction form
   9,910/14,861.56 = 2,888.12/x
3. Step 3: Cross multiply
   9,910x = 14,861.56 × 2,888.12
4. Step 4: Simplify right side
   9,910x = 42,921,968.67
5. Step 5: Solve for x
   x = 42,921,968.67/9,910
6. Step 6: Final answer
   x = 4,331.18