Finding the Fourth Proportional to 10,830, 14,855.55 and 10,736.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,830 : 14,855.55 = 10,736.40 : x
2. Step 2: Convert to fraction form
   10,830/14,855.55 = 10,736.40/x
3. Step 3: Cross multiply
   10,830x = 14,855.55 × 10,736.40
4. Step 4: Simplify right side
   10,830x = 159,495,127.02
5. Step 5: Solve for x
   x = 159,495,127.02/10,830
6. Step 6: Final answer
   x = 14,727.16