Finding the Fourth Proportional to 7,899.17, 10,840.69 and 7,151.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,899.17 : 10,840.69 = 7,151.49 : x
2. Step 2: Convert to fraction form
   7,899.17/10,840.69 = 7,151.49/x
3. Step 3: Cross multiply
   7,899.17x = 10,840.69 × 7,151.49
4. Step 4: Simplify right side
   7,899.17x = 77,527,054.84
5. Step 5: Solve for x
   x = 77,527,054.84/7,899.17
6. Step 6: Final answer
   x = 9,814.58