Finding the Fourth Proportional to 10,131.24, 13,981.80 and 5,655

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.24 : 13,981.80 = 5,655 : x
2. Step 2: Convert to fraction form
   10,131.24/13,981.80 = 5,655/x
3. Step 3: Cross multiply
   10,131.24x = 13,981.80 × 5,655
4. Step 4: Simplify right side
   10,131.24x = 79,067,079
5. Step 5: Solve for x
   x = 79,067,079/10,131.24
6. Step 6: Final answer
   x = 7,804.28