Finding the Fourth Proportional to 7,731.27, 10,663.47 and 5,077.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,731.27 : 10,663.47 = 5,077.71 : x
2. Step 2: Convert to fraction form
   7,731.27/10,663.47 = 5,077.71/x
3. Step 3: Cross multiply
   7,731.27x = 10,663.47 × 5,077.71
4. Step 4: Simplify right side
   7,731.27x = 54,146,008.25
5. Step 5: Solve for x
   x = 54,146,008.25/7,731.27
6. Step 6: Final answer
   x = 7,003.51