Finding the Fourth Proportional to 10,983.60, 16,499.70 and 7,703.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.60 : 16,499.70 = 7,703.10 : x
2. Step 2: Convert to fraction form
   10,983.60/16,499.70 = 7,703.10/x
3. Step 3: Cross multiply
   10,983.60x = 16,499.70 × 7,703.10
4. Step 4: Simplify right side
   10,983.60x = 127,098,839.07
5. Step 5: Solve for x
   x = 127,098,839.07/10,983.60
6. Step 6: Final answer
   x = 11,571.69