Finding the Fourth Proportional to 10,492.49, 14,479.76 and 5,712.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,492.49 : 14,479.76 = 5,712.53 : x
2. Step 2: Convert to fraction form
   10,492.49/14,479.76 = 5,712.53/x
3. Step 3: Cross multiply
   10,492.49x = 14,479.76 × 5,712.53
4. Step 4: Simplify right side
   10,492.49x = 82,716,005.28
5. Step 5: Solve for x
   x = 82,716,005.28/10,492.49
6. Step 6: Final answer
   x = 7,883.36