Finding the Fourth Proportional to 7,723.78, 10,661.42 and 5,492.13

Step by Step Solution

1. Step 1: Write the proportion equation
   7,723.78 : 10,661.42 = 5,492.13 : x
2. Step 2: Convert to fraction form
   7,723.78/10,661.42 = 5,492.13/x
3. Step 3: Cross multiply
   7,723.78x = 10,661.42 × 5,492.13
4. Step 4: Simplify right side
   7,723.78x = 58,553,908.36
5. Step 5: Solve for x
   x = 58,553,908.36/7,723.78
6. Step 6: Final answer
   x = 7,580.99