Finding the Fourth Proportional to 10,736.16, 14,915.10 and 10,640.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,736.16 : 14,915.10 = 10,640.04 : x
2. Step 2: Convert to fraction form
   10,736.16/14,915.10 = 10,640.04/x
3. Step 3: Cross multiply
   10,736.16x = 14,915.10 × 10,640.04
4. Step 4: Simplify right side
   10,736.16x = 158,697,260.60
5. Step 5: Solve for x
   x = 158,697,260.60/10,736.16
6. Step 6: Final answer
   x = 14,781.57