Finding the Fourth Proportional to 6,499.89, 9,749.16 and 2,988.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.89 : 9,749.16 = 2,988.81 : x
2. Step 2: Convert to fraction form
   6,499.89/9,749.16 = 2,988.81/x
3. Step 3: Cross multiply
   6,499.89x = 9,749.16 × 2,988.81
4. Step 4: Simplify right side
   6,499.89x = 29,138,386.90
5. Step 5: Solve for x
   x = 29,138,386.90/6,499.89
6. Step 6: Final answer
   x = 4,482.90