Finding the Fourth Proportional to 10,131.68, 13,981.68 and 5,655.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.68 : 13,981.68 = 5,655.44 : x
2. Step 2: Convert to fraction form
   10,131.68/13,981.68 = 5,655.44/x
3. Step 3: Cross multiply
   10,131.68x = 13,981.68 × 5,655.44
4. Step 4: Simplify right side
   10,131.68x = 79,072,552.34
5. Step 5: Solve for x
   x = 79,072,552.34/10,131.68
6. Step 6: Final answer
   x = 7,804.49