Finding the Fourth Proportional to 7,688.84, 10,603.50 and 5,704.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,688.84 : 10,603.50 = 5,704.34 : x
2. Step 2: Convert to fraction form
   7,688.84/10,603.50 = 5,704.34/x
3. Step 3: Cross multiply
   7,688.84x = 10,603.50 × 5,704.34
4. Step 4: Simplify right side
   7,688.84x = 60,485,969.19
5. Step 5: Solve for x
   x = 60,485,969.19/7,688.84
6. Step 6: Final answer
   x = 7,866.72